Joseph Dominic Hackett (born 4 August 1925) is an Irish former tennis player.

He was also capped for Leinster in rugby union and captained Old Belvedere R.F.C.

[1] Hackett, who made his first Irish Championship final aged 16, was active on the tennis circuit from the 1940s to the early 1960s.

[2] An Ireland Davis Cup player from 1950 to 1961, Hackett won four singles and four doubles rubbers, then later served the team as non playing captain.

[3] He was a regular participant at Wimbledon in the 1950s.