Oliver John O'Neill (born 8 January 2003) is an Irish professional footballer who plays as a midfielder for EFL League One club Leyton Orient and the Republic of Ireland U21 team.
[3] He called up to the first team squad at Fulham for the first time being an unused substitute against Leeds United in the EFL Cup in September 2021.
[5] He had interest from other English clubs for a loan spell but was injured over the January 2023 transfer window and no moves materialised as a result.
[7] He made his League of Ireland debut for Derry City on 20 February 2023 in a 1–1 draw at St Patrick's Athletic.
[10] On 23 January 2024, O'Neill signed for EFL League One side Leyton Orient for an undisclosed fee on a two-and-a-half-year contract.