'''William Kay''' may refer to: {{TOC right}}
==Politicians== *William Kay (politician) (1829–1889) businessman and politician in South Australia *William A. Kay (1864-1931), American politician *William Frederic Kay (1876–1942), Canadian politician
==Sports== *William Kay (cricketer) (1893-1973), Australian cricketer *Will Kay (born 1984), rugby player *Bill Kay (baseball) (1878–1945), outfielder in Major League Baseball *Bill Kay (defensive back) (born 1960), former American football player, a defensive back for the Houston Oilers. *Bill Kay (tackle) (1925-2007), American football player, a tackle for the New York Giants. *Billy Kay (wrestler) (born 1989), Australian professional wrestler
==Baronets== *Sir William Kay, 2nd Baronet (died 1850) of the Kay baronets *Sir William Algernon Kay, 5th Baronet (1837–1914) of the Kay baronets *Sir William Algernon Ireland Kay, 6th Baronet CMG DSO (1876–1918) of the Kay baronets
==Others== *William Kay (journalist), British financial and business journalist *William Kay (priest) (1894–1980), Anglican Provost of Blackburn *William Kay (scholar) (1820–1886), English cleric and academic *Billie Kay (born 1989), Australian professional wrestler *Billy Kay (actor) (born 1984), American film and television actor *Billy Kay (writer) (born 1951), writer, broadcaster and language activist * William Kay, namesake of Kaysville, Utah
==See also== *William Kaye (disambiguation)
{{hndis|Kay, William}}