Tammy Cantoni (born 25 August 1972) is an Australian semi-professional pool and snooker player.

[1] She won the National championships in women's divisions in snooker (2004) and nine-ball (8 times from 1995 to 2009).

She was the runner-up in the 2009 open (mixed-gender) division of the Australian Nine-ball Championship and in 2010 was listed 56th in the World Pool Billiard Association women rankings.

Cantoni won numerous regional womens-division titles, and has often represented her home country internationally.

She is a three-time New South Wales state eight-ball champion (1995, 1998, 1999); NSW nine-ball champion (1999); seven-time participant in the WPA World Nine-ball Championship as a representative of Australia (1995–2000, 2004); representative for Australia at the 2001 World Games; eight-time Trans-Tasman Cup representative on Team Australia (1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004); five-time VNEA International Championship representative on Team Australia (1996, 1997, 1998, 1999, 2000); Amarda eight-ball champion (1993, 1995, 1997), Lord Mayor's Cup winner (1998, 1999), Christmas Shield winner (1996, 1997, 2000); 2000 winner of the Australia Day Championship (eight-ball), Millennium Cup (snooker), Easter Cup (eight-ball), and Oceania Championship (eight-ball); and 2001 Oceania Nine-ball Champion.