Mallett is a surname. Notable people with the surname include:
Ashley Mallett, former Australian cricketer
Daryl F. Mallett, science fiction editor and writer
David Mallett, singer-songwriter
Harry Mallett, cricketer and administrator
Garry Mallett, New Zealand politician
Harry Mallett, English cricketer
Jane Mallett, Canadian actress
Jef Mallett, creator and artist of the comic strip Frazz
Jeff Mallett, former soccer and baseball player
Jerry Mallett, American baseball player
Joe Mallett, an English professional footballer
John Mallett, English rugby union player
Keith Mallett, American artist
Marc Mallett, Northern Irish television presenter and journalist
Marc Mallett, Northern Irish broadcaster and journalist
Marla Mallett, Canadian curler
Martell Mallett, Canadian football running back
Neal Mallett (born 1957), British fencer
Nick Mallett, South African rugby union coach and former player
Pattie Mallette, Canadian author
Reginald Mallett, Bishop of Northern Indiana
Renee Mallett, author of poetry and short fiction
Ronald Mallett, professor of physics in the University of Connecticut
Ronnie Mallett, former American football player
Ryan Mallett, American football quarterback
Sarah Mallett, preacher
Timmy Mallett, TV presenter and broadcaster
Xanthé Mallett, Scottish forensic anthropologist, criminologist and television presenter
Fictional characters:
Billy Mallett, character in the soap opera Coronation Street