James Giannaros (born 25 July 1952) is an Australian former professional snooker player.

[1] Giannaros played at the 1980 IBSF World Snooker Championship, winning all six of his group matches, before being eliminated 3-5 by Ron Atkins in the quarter-finals.

[1] The following season, he defeated Tony Chappel 5–2 at the 1985 Classic but lost 3–5 in the next qualifying round to Marcel Gauvreau; and recorded a 6–1 win over Colin Roscoe at the 1985 British Open before losing 3–6 to Dean Reynolds in the second qualifying round.

The 1985 World Snooker Championship saw him eliminated 1–10 by Steve Longworth.

[1] After failing to win a match in the following two seasons, Giannaros was a "non-tournament" member of the WPBSA for the 1989–90 snooker season,[5] and apart from one match at the 1994 Australian Open, did not play professionally again.