Frank O'Neill (born 13 April 1940) is an Irish former footballer who spent most of his career at Shamrock Rovers.
O'Neill signed for Arsenal as an eighteen-year-old, initially as an amateur but subsequently turned professional in April 1959.
He made his senior debut for Arsenal on New Year's Eve 1960 in a 5–3 away win against Nottingham Forest and then played again in a home game against Blackpool.
His teammates at the club during this era included Liam Tuohy, Johnny Fullam, Pat Dunne, Bobby Gilbert, Mick Leech and Paddy Mulligan.
[1] During the 1965–66 season O'Neill scored 6 goals during the FAI Cup run including one in the final against Limerick.
Between 1961 and 1971, while playing for Shamrock Rovers, O'Neill made 20 appearances and scored 1 goal for the Republic of Ireland.
He scored his only goal for the senior national team on 11 November 1966 in a 2–1 home win against Turkey in a European qualifier.