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, established in 1892 in 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 (bailiff) (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 (fl. 1970s–2000s), 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