William or Bill Carey may refer to:

• William Carey (courtier) (c. 1500–1528), courtier of King Henry VIII of England
• William Carey (missionary) (1761–1834), English Baptist missionary, philologist, orientalist, translator
  • William Carey University, Mississippi
• William Carey (MP) (died 1593), MP for Morpeth and Northumberland
• William Carey (bishop) (1769–1846), English churchman and headmaster, bishop of Exeter and of St Asaph
• William Carey (politician) (1887–1928), Australian politician
• William P. Carey (1930–2012), American businessman
• William D. Carey (1912–1998), publisher of Science, 1975–1987
• William Carey (Guernsey) (1853–1915), Bailiff of Guernsey
• William Paulet Carey (1759–1839), Irish art critic and publicist
• William R. Carey (1806–1836), volunteer soldier during the Texas Revolution
• Bill Carey (songwriter) (1916–2004), American songwriter
• Bill Carey , member of the comedy musical group Ogden Edsl
• Bill Carey (footballer) (1905–1973), Australian rules footballer for Hawthorn
• Bill Carey (curler) (born 1954), Canadian curler and coach

• William Cary (disambiguation)