Exhibit 5.1

	98 SAN JACINTO	AUSTIN	LONDON
	BLVD.	BEIJING	MOSCOW
	SUITE 1500	BRUSSELS	NEW YORK
	AUSTIN, TEXAS	DALLAS	PALO ALTO
	78701-4078	DUBAI	RIO DE JANEIRO
		HONG KONG	RIYADH
	TEL +1	HOUSTON	WASHINGTON
	512.322.2500
	FAX +1
	512.322.2501
	BakerBotts.com

July 17, 2015

Tallgrass Energy GP, LP

4200 W. 115th Street, Suite 350

Leawood, Kansas 66211

Ladies and Gentlemen:

We have acted as counsel to Tallgrass Energy GP, LP, a Delaware limited partnership (the “Partnership”), and TEGP Management, LLC, a Delaware limited liability company and the general partner of the Partnership, with respect to certain legal matters in connection with the Registration Statement on Form S-8 (the “Registration Statement”) to be filed by the Partnership with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933, as amended (the “Securities Act”), relating to 3,144,589 Class A shares representing limited partner interests of the Partnership (the “Shares”) that may be issued pursuant to the TEGP Management, LLC Long-Term Incentive Plan (as amended, the “Plan”). At your request, this opinion is being furnished to you for filing as Exhibit 5.1 to the Registration Statement.

In our capacity as your counsel in the connection referred to above, we have examined such statutes, including the Delaware Revised Uniform Limited Partnership Act (the “Delaware LP Act”), and the Partnership’s records and documents, certificates of representatives of the Partnership and public officials, and other instruments and documents as we deemed necessary or advisable for the purposes of this opinion. In giving the opinion set forth below, we have relied, without independent investigation or verification, to the extent we deemed appropriate, upon the certificates, statements or other representations of officers or other representatives of the general partner of the Partnership and public officials, with respect to the accuracy of the factual matters contained in or covered by such certificates, statements or representations. In making our examination, we have assumed that all signatures on all documents examined by us are genuine, all documents submitted to us as originals are authentic and complete and all documents submitted to us as copies are true and correct copies of the originals of such documents.

Based upon the foregoing, and subject to the assumptions, limitations and qualifications set forth herein, we are of the opinion that, when issued and delivered by the Partnership against payment therefor from time to time in accordance with the provisions of the Plan, the Shares will be validly issued, fully paid and nonassessable.

The foregoing opinion is limited in all respects to the Delaware LP Act, as published in effect on the date hereof, and applicable reported judicial decisions, rules and regulations interpreting and implementing those laws. We express no opinion as to the effect of the laws of any other jurisdiction.

2

July 17, 2015

We hereby consent to the filing of this opinion as Exhibit 5.1 to the Registration Statement. In giving this consent, we do not hereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Commission thereunder.

Very truly yours,

/s/ Baker Botts L.L.P.