6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of March, 2014

Commission File Number 001-33434

CREDIT SUISSE AG

(Translation of Registrant’s Name Into English)

Paradeplatz 8, CH-8070 Zurich, Switzerland

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or

Form 40-F.

   Form 20-F   x   Form 40-F   o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

   Yes   o   No   x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-.

Explanatory note

This Report on Form 6-K contains the exhibit set forth below. This report on Form 6-K and such exhibit are hereby incorporated by reference into Registration Statement No. 333-180300-03 of Credit Suisse AG.

Exhibit 5.1: Opinion of Davis Polk & Wardwell LLP, U.S. counsel to the Company, with respect to the validity of the Notes under New York law.

Exhibit 99.1: Tax Opinion of Orrick, Herrington & Sutcliffe LLP, dated March 21, 2014, relating to the registrant’s Leveraged Buffered MSCI EAFE® Index-Linked Medium-Term Notes due 2016; and

Exhibit 99.2: Tax Opinion of Orrick, Herrington & Sutcliffe LLP, dated March 21, 2014, relating to the registrant’s 10.00% per annum Contingent Coupon Callable Buffered Securities due March 21, 2018 Linked to the Performance of the EURO STOXX 50® Index and the Russell 2000® Index; and

Exhibit 99.3: Tax Opinion of Orrick, Herrington & Sutcliffe LLP, dated March 21, 2014, relating to the registrant’s 8.05% per annum Contingent Coupon Callable Buffered Securities due March 21, 2018 Linked to the Performance of the EURO STOXX 50® Index and the Russell 2000® Index.

     Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	CREDIT SUISSE AG
Date: March 21, 2014	By:	/s/ Michael G. Clark
		Name:	Michael G. Clark
		Title:	Authorized Officer
	By:	/s/ Gina Orlins
		Name:	Gina Orlins
		Title:	Authorized Officer

EX-5.1

Exhibit 5.1

		New York Menlo Park Washington DC São Paulo London	Paris Madrid Tokyo Beijing Hong Kong
Davis Polk & Wardwell LLP 450 Lexington Avenue New York, NY 10017	212 450 4000 tel 212 701 5800 fax

March 21, 2014

Credit Suisse AG

Paradeplatz 8

CH 8070 Zurich, Switzerland

Ladies and Gentlemen:

Credit Suisse AG, a corporation organized under the laws of Switzerland (the “Company”), has filed with the Securities and Exchange Commission (the “Commission”) a Registration Statement on Form F-3 (File No. 333-180300-03) (the “Registration Statement”) for the purpose of registering under the Securities Act of 1933, as amended (the “Securities Act”), among other securities, the Company’s Medium-Term Notes to be issued from time to time by the Company through its London branch.  These securities include the notes identified in Exhibit A attached hereto (the “Notes”). The Notes have been issued pursuant to the Senior Indenture dated as of March 29, 2007 (the “Indenture”) between the Company and The Bank of New York Mellon (formerly known as The Bank of New York), as trustee (the “Trustee”), as amended and supplemented from time to time and in effect as of the date hereof.

We, as your United States counsel, have examined originals or copies of such documents, corporate records, certificates of public officials and other instruments as we have deemed necessary or advisable for the purpose of rendering this opinion.

In rendering the opinions expressed herein, we have, without independent inquiry or investigation, assumed that (i) all documents submitted to us as originals are authentic and complete, (ii) all documents submitted to us as copies conform to authentic, complete originals, (iii) all signatures on all documents that we reviewed are genuine, (iv) all natural persons executing documents had and have the legal capacity to do so, (v) all statements in certificates of public officials and officers of the Company that we reviewed were and are accurate and (vi) all representations made by the Company as to matters of fact in the documents that we reviewed were and are accurate.

Based upon the foregoing, we advise you that in our opinion, the Notes, when duly executed, authenticated and issued and delivered in accordance with the terms of the Indenture and the applicable underwriting or other distribution agreement against payment therefor, will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their respective terms, subject to applicable bankruptcy, insolvency and similar laws affecting the enforcement of creditors’ rights generally, concepts of reasonableness and equitable principles of general applicability (including, without limitation, concepts of good faith,

Credit Suisse AG 2 March 21, 2014

fair dealing and the lack of bad faith), provided that we express no opinion as to the effect of fraudulent conveyance, fraudulent transfer or similar provision of applicable law on the conclusions expressed above.

We are members of the Bar of the State of New York, and we express no opinion as to the laws of any jurisdiction other than the laws of the State of New York.  Insofar as the foregoing opinion involves matters governed by Swiss law, we have relied, without independent inquiry or investigation, on the opinion of Homburger AG, Swiss legal counsel for the Company, dated January 22, 2014 and filed by the Company with the Commission as an exhibit to a Report on Form 6-K on January 22, 2014. Our opinion is subject to the same assumptions, qualifications and limitations with respect to such matters as are contained in the opinion of Homburger AG.

In connection with the opinion above, we have assumed that the Trustee is validly existing and in good standing under the laws of the jurisdiction of its organization. In addition, we have assumed that the execution, delivery and performance of the Indenture (1) are within the corporate powers of the Trustee, (2) do not and will not contravene, or constitute a default under, the certificate of incorporation or bylaws or other constitutive documents of the Trustee, (3) require no action by or in respect of, or filing with, any governmental body, agency or official and (4) do not contravene, or constitute a default under, any provision of applicable law or regulation, public policy or any judgment, injunction, order or decree or any agreement or other instrument binding upon the Company or the Trustee; and that the Indenture has been duly authorized, executed and delivered by the Trustee and is a valid, binding and enforceable agreement of the Trustee.

We express no opinion as to (x) provisions in the Indenture that purport to waive objections to venue, claims that a particular jurisdiction is an inconvenient forum or the like, (y) whether a United States federal court would have subject-matter or personal jurisdiction over a controversy arising under the Notes or (z) the effectiveness of any service of process made other than in accordance with applicable law.  In addition, we note that the enforceability in the United States of Section 10.08(c) of the Indenture is subject to the limitations set forth in the United States Foreign Sovereign Immunities Act of 1976.

We hereby consent to the filing of this opinion as an exhibit to a report on Form 6-K to be filed by the Company on the date hereof and incorporated by reference into the Registration Statement.

In giving our consent above, we do not admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act.

Very truly yours,

/s/ Davis Polk & Wardwell LLP

Credit Suisse AG 3 March 21, 2014

Exhibit A

Title of Securities	Date of Final Pricing Supplement	Pricing Supplement No.	Principal Amount	CUSIP
Leveraged Buffered MSCI EAFE® Index-Linked Medium-Term Notes due 2016	March 14, 2014	K392	$5,080,000	22547QJW7
10.00% per annum Contingent Coupon Callable Buffered Securities due March 21, 2018	March 18, 2014	U991	$931,000	22547QKP0
8.05% per annum Contingent Coupon Callable Buffered Securities due March 21, 2018	March 18, 2014	U992	$660,000	22547QKQ8

EX-99.1

Exhibit 99.1

ORRICK, HERRINGTON & SUTCLIFFE LLP

51 WEST 52ND STREET

NEW YORK, NEW YORK 10019-6142

March 21, 2014

Credit Suisse

11 Madison Avenue

New York, New York 10010

Ladies and Gentlemen:

We have acted as special tax counsel to Credit Suisse AG, a corporation incorporated under the laws of Switzerland (the “Company”), in connection with the preparation and filing of pricing supplement no. K392 dated March 14, 2014 relating to Leveraged Buffered MSCI EAFE® Index-Linked Medium-Term Notes due 2016 (the “Pricing Supplement”), to the underlying supplement dated July 29, 2013 relating to Medium-Term Notes and Warrants Underlying Supplement for Indices and Exchange-Traded Funds (the “Underlying Supplement”), to the product supplement dated March 23, 2012 relating to Accelerated Return Equity Securities (ARES)® and Buffered Accelerated Return Equity Securities (BARES)SM and Buffered Securities® and Enhanced Participation Securities Linked to the Performance of One or More Indices, Exchange-Traded Funds, Equity Securities, Exchange Rates, Commodities, Commodity Futures Contracts or a Basket (the “Product Supplement”), to the prospectus supplement dated March 23, 2012 (the “Prospectus Supplement”) for the Company’s Senior Medium-Term Notes and Subordinated Medium-Term Notes relating to the prospectus dated March 23, 2012 (the “Prospectus”) contained in the Company’s Registration Statement (No. 333-180300-03) (the “Registration Statement”). This opinion is being furnished in accordance with the requirements of Section 601(b)(8) of Regulation S-K of the Securities Act of 1933, as amended (the “Act”).

In our opinion, the discussions under the headings “Material United States Federal Income Tax Considerations” in the Product Supplement and “Material U.S. Federal Income Tax Considerations” in the Pricing Supplement, subject to the conditions and limitations described therein, set forth the material U.S. federal income tax considerations applicable generally to holders of the securities offered pursuant to the Pricing Supplement as a result of the ownership and disposition of such securities.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the references to us under the headings “Material United States Federal Income Tax Considerations” in the Product Supplement and “Material U.S. Federal Income Tax Considerations” in the Pricing Supplement.  By such consent we do not concede that we are an “expert” for the purposes of the Act.

Very truly yours,

/s/ Orrick, Herrington & Sutcliffe LLP

EX-99.2

Exhibit 99.2

ORRICK, HERRINGTON & SUTCLIFFE LLP

51 WEST 52ND STREET

NEW YORK, NEW YORK 10019-6142

March 21, 2014

Credit Suisse

11 Madison Avenue

New York, New York 10010

Ladies and Gentlemen:

We have acted as special tax counsel to Credit Suisse AG, a corporation incorporated under the laws of Switzerland (the “Company”), in connection with the preparation and filing of pricing supplement no. U991 dated March 18, 2014 relating to 10.00% per annum Contingent Coupon Callable Buffered Securities due March 21, 2018 Linked to the Performance of the EURO STOXX 50® Index and the Russell 2000® Index (the “Pricing Supplement”), to the underlying supplement dated July 29, 2013 relating to Medium-Term Notes and Warrants Underlying Supplement for Indices and Exchange-Traded Funds (the “Underlying Supplement”), to the product supplement dated March 23, 2012 relating to Callable Yield Notes Linked to the Performance of One or More Indices, Exchange-Traded Funds, Equity Securities, Exchange Rates, Commodities, Commodity Futures Contracts or a Basket (the “Product Supplement”), to the prospectus supplement dated March 23, 2012 (the “Prospectus Supplement”) for the Company’s Senior Medium-Term Notes and Subordinated Medium-Term Notes relating to the prospectus dated March 23, 2012 (the “Prospectus”) contained in the Company’s Registration Statement (No. 333-180300-03) (the “Registration Statement”). This opinion is being furnished in accordance with the requirements of Section 601(b)(8) of Regulation S-K of the Securities Act of 1933, as amended (the “Act”).

In our opinion, the discussions under the headings “Material United States Federal Income Tax Considerations” in the Product Supplement and “Material U.S. Federal Income Tax Considerations” in the Pricing Supplement, subject to the conditions and limitations described therein, set forth the material U.S. federal income tax considerations applicable generally to holders of the securities offered pursuant to the Pricing Supplement as a result of the ownership and disposition of such securities.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the references to us under the headings “Material United States Federal Income Tax Considerations” in the Product Supplement and “Material U.S. Federal Income Tax Considerations” in the Pricing Supplement. By such consent we do not concede that we are an “expert” for the purposes of the Act.

Very truly yours,

/s/ Orrick, Herrington & Sutcliffe LLP

EX-99.3

Exhibit 99.3

ORRICK, HERRINGTON & SUTCLIFFE LLP

51 WEST 52ND STREET

NEW YORK, NEW YORK 10019-6142

March 21, 2014

Credit Suisse

11 Madison Avenue

New York, New York 10010

Ladies and Gentlemen:

We have acted as special tax counsel to Credit Suisse AG, a corporation incorporated under the laws of Switzerland (the “Company”), in connection with the preparation and filing of pricing supplement no. U992 dated March 18, 2014 relating to 8.05% per annum Contingent Coupon Callable Buffered Securities due March 21, 2018 Linked to the Performance of the EURO STOXX 50® Index and the Russell 2000® Index (the “Pricing Supplement”), to the underlying supplement dated July 29, 2013 relating to Medium-Term Notes and Warrants Underlying Supplement for Indices and Exchange-Traded Funds (the “Underlying Supplement”), to the product supplement dated March 23, 2012 relating to Callable Yield Notes Linked to the Performance of One or More Indices, Exchange-Traded Funds, Equity Securities, Exchange Rates, Commodities, Commodity Futures Contracts or a Basket (the “Product Supplement”), to the prospectus supplement dated March 23, 2012 (the “Prospectus Supplement”) for the Company’s Senior Medium-Term Notes and Subordinated Medium-Term Notes relating to the prospectus dated March 23, 2012 (the “Prospectus”) contained in the Company’s Registration Statement (No. 333-180300-03) (the “Registration Statement”). This opinion is being furnished in accordance with the requirements of Section 601(b)(8) of Regulation S-K of the Securities Act of 1933, as amended (the “Act”).

In our opinion, the discussions under the headings “Material United States Federal Income Tax Considerations” in the Product Supplement and “Material U.S. Federal Income Tax Considerations” in the Pricing Supplement, subject to the conditions and limitations described therein, set forth the material U.S. federal income tax considerations applicable generally to holders of the securities offered pursuant to the Pricing Supplement as a result of the ownership and disposition of such securities.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the references to us under the headings “Material United States Federal Income Tax Considerations” in the Product Supplement and “Material U.S. Federal Income Tax Considerations” in the Pricing Supplement. By such consent we do not concede that we are an “expert” for the purposes of the Act.

Very truly yours,

/s/ Orrick, Herrington & Sutcliffe LLP