Matthew or Matt King may refer to:

Music

* Matthew Peter King (c. 1773–1823), English composer * Matt King (singer) (born 1966), American country music artist * Matthew King (composer, born 1967), British composer and pianist * Matt King (Canadian musician) (fl. 2003–2011), member of Canadian indie band DD/MM/YYYY

Sports

* Matthew King (Australian cricketer) (born 1977), Australian cricketer * Matt King (rugby league) (born 1980), Australian rugby league footballer * Matt King (American football) (born 1983), American football player * Matt King (cricketer) (born 1994), English cricketer * Matt King (swimmer) (born 2002), American swimmer

* Matthew King (Malmesbury MP) (fl. 1553–1558), English MP for Malmesbury * Matthew King ( 1712–1737), real name of English highwayman Tom King * Matthew Leander King (1878–1919), American engineer * Matt King (politician) (born 1967), New Zealand politician * Matt King (comedian) (born 1968), British actor and comedian * Matthew Yang King (born 1974), American actor, voice actor, director, producer, and writer * Matt King (artist) (1985–2022), American artist and co-founder of Meow Wolf * Matt King (vlogger) (born 1996), American vlogger, part of The Vlog Squad * Matthew King (''Emmerdale''), fictional character in British TV soap opera ''Emmerdale'' {{hndis, King, Matthew