Lynne Cantwell (born 27 September 1981) is an Irish rugby union player.

[4] She played at the 2013 Rugby World Cup Sevens.

[5] In 2019, she was on the first panel to determine the World Rugby women's-15s player-of-the-year award with Melodie Robinson, Danielle Waterman, Will Greenwood, Liza Burgess, Fiona Coghlan, Gaëlle Mignot, Jillion Potter, Stephen Jones, and Karl Te Nana.

[7] As of 2019, Cantwell is a member of the board of Sports Ireland.

[citation needed] At the 2024 Summer Olympic Games, Cantwell was part of the coaching squad for the South African rugby sevens team.