Ollie Cahill (born 29 September 1975 in Clonmel) is an Irish former professional footballer, primarily a left winger. Cahill had a youth career with Old Bridge where he won a Munster Youth Cup thanks to a 5-0 over Turnpike Rovers in 1993. The following year he was instrumental in Clonmel Town winning the FAI Junior Cup with a 5-1 over New Ross Celtic. He then moved to English outfit Northampton Town. He later returned to Ireland for spells with Cork City, Shelbourne, Drogheda United, Shamrock Rovers, Sporting Fingal and Bohemians.