William Cobb may refer to:
Billy Cobb (born 1940), English former footballer active in the 1960s Will D. Cobb (1876–1930), American lyricist and composer William Cobb, a member of the Court of Owls. William Cobb (designer), designer and engineer of rollercoasters William Cobb (photographer), British photographer William Geikie-Cobb (1857–1941}, Anglican author and priest William H. Cobb, politician and father of baseball player Ty Cobb William J. Cobb, best known as Happy Humphrey, the heaviest professional wrestler of all time William Jelani Cobb (born 1969), American author and educator William Montague Cobb (1906–1990), physical anthropologist William Peyton Cobb (1880–1963), Secretary of State of Alabama William T. Cobb (1857–1937), Governor of Maine, 1905–1909 Willie Cobb (fl. 1908–1909), American baseball player
Fictional characters William Cobb (Eureka character), a character on the American science fiction drama Eureka
See also Bill Cobbs (1934–2024), American character actor