Gyzelle Sy (born August 21, 1992) is a Filipino volleyball player.
Sy played for the FEU Lady Tamaraws collegiate women's University team.
She is currently playing for the Cignal HD Spikers in the Premier Volleyball League.
[1] Sy made her first game appearance with the FEU Lady Tamaraws in UAAP Season 73, where her team placed 6th.
[2] In UAAP Season 78, it was her final year playing for the FEU Lady Tamaraws, where her team placed 3rd.