Tom Grivosti (born 15 June 1999) is an English professional footballer who plays as a defender for League of Ireland Premier Division club St Patrick's Athletic.

Born and raised in Liverpool, Grivosti played for local side MSB Woolton from Under-6 level until moving to the youth academy at Bolton Wanderers.

[9][10] On 11 February 2022, he made his debut for the club in the 2022 President of Ireland's Cup against Shamrock Rovers at Tallaght Stadium, replacing the injured James Abankwah in the 76th minute as his side lost 5–4 on penalties after a 1–1 draw.

[12] Grivosti made his first appearance in European football on 21 July 2022 in a 1–1 draw with Slovenian side NŠ Mura in the UEFA Europa Conference League.

[21] He featured in all 6 of the club's UEFA Conference League fixtures as they knocked out Vaduz, then Sabah of Azerbaijan, before losing 2–0 on aggregate to Turkey's İstanbul Başakşehir in the Play-off Round.