William Hobbs or Bill Hobbs may refer to:

• William Hobbs (politician) (1822–1890), doctor and politician in colonial Queensland
• William Herbert Hobbs (1864–1952), geologist
• Bill Hobbs (baseball) (1893–1945), shortstop in Major League Baseball
• William G. Hobbs (1927–2012), Canadian artist
• William Hobbs (choreographer) (1939–2018), choreographer of staged fights
• Bill Hobbs (American football) (1946–2004), American football player
• Bill Hobbs (rower) (1949–2020), American rower