Frank Warren may refer to:

• Frank Warren (American football) (1959-2002), played for the New Orleans Saints
• Frank Warren (promoter) (born 1952), English boxing manager and promoter
• Francis E. Warren (1844-1929), American politician, U.S. senator from Wyoming
• Frank Warren, founder of the PostSecret website project
• Frank Warren (NASCAR driver) (born 1937), retired NASCAR Cup Series driver

[ Source: Wikipedia ]