Lucretia del Valle Grady (October 18, 1892 — May 23, 1972) was a Californio political activist, suffragette, and actress.

[4] A large painting of del Valle in this role, Guy Rose's The Leading Lady (1914), hangs at the San Diego History Center, in Balboa Park.

[6][7] Del Valle left acting for political work, first with her father, and then with her husband, but also in her own right.

She was vice chair of the Democratic National Committee in 1937, when her husband Henry Grady became assistant Secretary of State,[9] and the couple moved to Washington D. C.[10] In 1946, she christened the S. S. President Cleveland, a large passenger liner.

[1] She was active as a diplomat's wife when Henry Grady became the first United States Ambassador to the newly independent India in 1947.