ROSS STORES, INC.
POWER OF ATTORNEY
The undersigned hereby designates and appoints as his/her
attorney-in-fact and authorizes each of: Travis Marquette, Group
Senior Vice President, Chief Financial Officer; Ken Jew, Group
Senior Vice President, General Counsel and Corporate Secretary;
Deon Riley, Group Senior Vice President, Human Resources; Kevin
Reimann, Senior Vice President, Human Resources; and Marcia
Casey, Vice President, Human Resources of Ross Stores, Inc. (the
"Company"), to execute for and on behalf of the undersigned, in
the undersigned's capacity as an officer or director of the
Company, Form ID Uniform Application for Access Codes and
Passwords to File on EDGAR, Forms 3, 4, and 5, and any amendments
thereto, and to cause such form(s) to be filed with the United
States Securities and Exchange Commission pursuant to
Section 16(a) of the Securities Act of 1934, relating to the
undersigned's beneficial ownership of securities in the Company.
The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the
exercise of any of the rights and powers herein granted, as fully
to all intents and purposes as the undersigned might or could do
if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of
this power of attorney and the rights and powers herein granted.
The undersigned acknowledges that the foregoing attorneys-in-
fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the Company assuming, any
of the undersigned's responsibilities to comply with Section 16
of the Securities Exchange Act of 1934.
This Power of Attorney shall remain in full force and effect
until the undersigned is no longer required to file Forms 4 and 5
with respect to the undersigned's holdings of, and transactions
in, securities issued by the Company, unless earlier revoked by
the undersigned in a signed writing delivered to the foregoing
attorneys-in-fact.
In Witness Whereof, the undersigned has caused this Power of
Attorney to be executed as of this 28th day of February 2020.
/s/ Patricia Mueller
(Signature)  Patricia Mueller