Merrett is a surname. Notable people with the surname include:
Daniel Merrett (born 1984), Australian rules footballer in the Australian Football League and fullback for Brisbane LionsJackson Merrett (born 1993), Australian rules football playerJohn Campbell Merrett (born 1909), Canadian architect whose most noteworthy work was the concept and design of Montreal’s Central StationLara Merrett (born 1971), Australian visual artist who lives and works in Melbourne, AustraliaLeo Merrett, Australian rules footballer who played in the VFL in between 1940 and 1949 for the Richmond Football ClubMitch Merrett, Canadian record producerNigel Merrett (born 1940), British zoologist and ichthyologist and former director of the fish section of the British Natural History MuseumPaul Merrett, chef and TV personality based in Godalming, guest chef on Saturday Kitchen, a resident chef on Sunday FeastRoger Merrett (born 1960), former Australian rules footballer who played in two Victorian Football League premiership sidesThorold Merrett (born 1933), former Australian rules footballer, who played in the Victorian Football LeagueZach Merrett (born 1995), Australian rules football player