Trey is a given name, as well as a nickname for people with the name suffix III. Notable people with the name include:

• Trey Adams (born 1997), American football player
• Trey Alexander (born 1983), American soccer player
• Trey Alexander (basketball) (born 2003), American basketball player
• Trey Allen (born 1974), American judge
• Trey Amos (born 2002), American football player
• Trey Amburgey (born 1994), American baseball player
• Trey Anastasio (born 1964), American musician
• Trey Anthony (born 1974), Canadian comedian and playwright
• Trey Augustine (born 2005), American ice hockey player

• Trey Ball (born 1994), American baseball player
• Trey Beamon (born 1974), American baseball player
• Trey Bender, American sportscaster
• Trey Benson (born 2002), American football player
• Trey Brewer, American bodybuilder
• Trey Britton (born 1989), American basketball player
• Trey Brown (born 1985), American football player
• Trey Brown (American football coach), American football coach
• Trey Bruce, American songwriter
• Trey Burke (born 1992), American basketball player
• Trey Burke (racing driver) (born 2004), American racing driver
• Trey Burton (born 1991), American football player

• Trey Cabbage (born 1997), American baseball player
• Trey Caldwell (born 1993), American football player
• Trey Caldwell (politician) (born 1988), American politician
• Trey Callaway, American film producer
• Trey Culver (born 1996), American athlete
• Trey Cunningham (born 1998), American hurdler

• Trey Darilek (born 1981), American football player
• Trey Dean (born 2000), American football player
• Trey DePriest (born 1993), American football player
• Trey Diller (born 1990), American football player
• Trey Dombroski (born 2001), American baseball player
• Trey Drechsel (born 1996), American basketball player

• Trey Ebanks (born 2000), Caymanian footballer
• Trey Edmunds (born 1994), American football player
• Trey Ellis (born 1962), American novelist

• Trey Fanjoy, American music video director
• Trey Martinez Fischer (born 1970), American politician
• Trey Fix-Wolansky (born 1999), Canadian ice hockey player
• Trey Flowers (born 1993), American football player
• Trey Freeman (born 1992), American basketball player

• Trey Galloway (born 2001), American basketball player
• Trey Gilder (born 1985), American basketball player
• Trey Gowdy (born 1964), American politician
• Trey Grayson (born 1972), American politician
• Trey Griffey (born 1994), American football player
• Trey Gunn (born 1960), American musician

• Trey Hardee (born 1984), American decathlete
• Trey Harris (born 1996), American baseball player
• Trey Haun (born 2006), American cyclist
• Trey Haverty (born 1981), American football coach
• Trey Henderson (born 1989), American football player
• Trey Hendrickson (born 1994), American football player
• Trey Hensley (born 1990), American singer-songwriter
• Trey Hilderbrand (born 2000), American tennis player
• Trey Hill (born 2000), American football player
• Trey Hillman (born 1963), American baseball manager
• Trey Hodges (born 1978), American baseball player
• Trey Hollingsworth (born 1983), American politician
• Trey Hopkins (born 1992), American football player
• Trey Hutchens (born 1998), American race car driver

• Trey Ideker, American professor

• Trey Jemison (born 1999), American basketball player
• Trey Johnson (born 1984), American basketball player
• Trey Junkin (born 1961), American football player

• Trey Kaufman-Renn (born 2002), American basketball player
• Trey Kell (born 1996), American basketball player
• Trey Kelley (born 1987), American politician
• Trey Kennedy (born 1992), American comedian
• Trey Knox (born 2001), American football player
• Trey Kramer (born 1988), American football player

• Trey Lamar (born 1980), American politician
• Trey Lance (born 2000), American football player
• Trey Landers (born 1998), American basketball player
• Trey Lee, Hong-Kong cellist
• Trey Lewis (disambiguation), multiple people
• Trey Lipscomb (born 2000), American baseball player
• Trey Lorenz (born 1969), American singer-songwriter
• Trey Lunsford (born 1979), American baseball player
• Trey Lyles (born 1995), Canadian basketball player

• Trey Mancini (born 1992), American baseball player
• Trey Marshall (born 1996), American football player
• Trey McBride (born 1999), American football player
• Trey McIntyre (born 1969), American dancer
• Trey McKenney (born 2006), American basketball player
• Trey McKinney-Jones (born 1990), American basketball player
• Trey Miguel (born 1994), American professional wrestler
• Trey Millard (born 1991), American football player
• Trey Mitchell (disambiguation), multiple people
• Trey Mooney (born 2002), Australian rugby league footballer
• Trey Moore (born 1972), American baseball player
• Trey Moore (American football) (born 2003), American football player
• Trey Moore (basketball) (born 1975), American basketball player
• Trey Mourning (born 1996), American basketball player
• Trey Mullinax (born 1992), American golfer
• Trey Murphy III (born 2000), American basketball player
• Trey Muse (born 1999), American soccer player

• Trey Nielsen (born 1991), American baseball player
• Trey Niemi (born 1998), Finnish basketball player
• Trey Nyoni (born 2007), English footballer

• Trey Palmer (born 2001), American football player
• Trey Parker (born 1969), American actor and comedian
• Trey Pearson, American singer-songwriter
• Trey Phillips (tennis) (born 1973), American tennis player
• Trey Pipkins (born 1996), American football player
• Trey Pollard (born 1982), American music producer

• Trey Quinn (born 1995), American football player

• Trey Radel (born 1976), American politician
• Trey Ragas (born 1996), American football player
• Trey Ratcliff (born 1971), American photographer
• Trey Rhodes (born 1975), American politician
• Trey Rucker (born 2001), American football player
• Trey Ruscoe (born 2001), Australian rules footballer
• Trey Rutherford (born 1995), Canadian football player

• Trey Sermon (born 1999), American football player
• Trey Sherwood, American politician
• Trey Edward Shults (born 1988), American film producer
• Trey Smith (disambiguation), multiple people
• Trey Songz (born 1984), American singer
• Trey Spruance (born 1969), American composer
• Trey Steimel, American politician
• Trey Stewart (born 1994), American politician
• Trey Stokes (born 1960), American filmmaker
• Trey Sweeney (born 2000), American baseball player

• Trey Taylor (born 2001), American football player
• Trey Teague (born 1974), American football player
• Trey Thompkins (born 1990), American basketball player
• Trey Townsend (born 2002), American basketball player
• Trey Traviesa (born 1969), American politician

• Trey Waltke (born 1955), American tennis player
• Trey Watts (born 1991), American football player
• Trey Wharton, American politician
• Trey White (born 2004), American football player
• Trey Wingo (born 1963), American sportscaster
• Trey Williams (born 1992), American football player
• Trey Wilson (1948–1989), American actor
• Trey Wingenter (born 1994), American baseball player
• Trey Wolfe (born 1988), American football player
• Trey Wolff (born 2000), American football placekicker
• Trey Woodbury (born 1999), American basketball player

• Trey Yesavage (born 2003), American baseball player
• Trey Yingst (born 1993), American reporter

• Trey Azagthoth, guitarist for death metal band Morbid Angel
• Trey Songz (born 1984), American R&B singer, songwriter, record producer, rapper, and actor Tremaine "Trey" Neverson
• MC Trey, also known as Trey, Fijian-Australian vocalist, and hip-hop activist

• Trey, a hacker in the film Live Free or Die Hard
• Trey of Triforia, in Power Rangers: Zeo
• Trey Atwood, in the TV series The O.C.
• Trey Racer, in Shaman King; see List of Shaman King characters
• Trey Clover, in Disney Twisted-Wonderland

• Tray (given name)
• Trae, given name
• Tre (given name)