John O'Flynn (born 11 July 1982) is a retired Irish professional footballer who played as a striker.

O'Flynn endeared himself to Barnet fans and was likened to club legend Giuliano Grazioli by former manager Paul Fairclough for his goalscoring ability.

O'Flynn was released by the club on 8 May 2014 after scoring 25 goals in 133 appearances over four seasons at St James Park.

[5] At the end of the 2015 season, O'Flynn joined Cork City's Munster rivals Limerick in the SSE Airtricity First Division, and scored some key goals in their promotion-winning campaign.

O'Flynn was announced as signed for recently relegated League of Ireland First Division club Finn Harps F.C.