Matthew Kennedy may refer to:

• Matthew Kennedy (author) (born 1957), American author
• Matthew Kennedy (cricketer) (born 1991), South African cricketer
• Matthew Kennedy (footballer, born 1970), former Australian rules football player for Brisbane
• Matthew Kennedy (footballer, born 1997), current Australian rules football player for the Western Bulldogs
• Matthew Kennedy (rugby league) (born 1981), Australian rugby league player (Newcastle Knights)
• Matthew P. Kennedy (1908–1957), basketball referee
• Matt Kennedy (born 1958), American footballer
• Matt Kennedy, part of Astron-6
• Matty Kennedy (born 1994), Scottish football player
• Matthew Washington Kennedy (1921–2014), African-American classical pianist, professor and choral director
• Matthew Kennedy (architect), Kentucky architect