| Office: | Roscommon County Councillor |
| Constituency: | Roscommon |
| Term Start: | 23 May 2014 |
| Party: | Independent Ireland (since 2024) |
| Otherparty: | Independent (2014–2024) |
| Code: | Football |
| Sport: | Gaelic football |
| Nigel Dineen | |
| Feet: | 6 |
| Inches: | 0 |
| County: | Roscommon |
| Province: | Connacht |
| Clubs: | Castlerea St Kevin's |
| Clposition: | Full forward |
| Clcounty: | 3 |
| Counties: | Roscommon |
| Icposition: | Corner forward |
| Icyears: | 1994–2005 |
| Icapps(Points): | 58 (9–89) |
| Icprovince: | 1 |
| Birth Place: | County Roscommon |
Nigel Dineen is an Irish politician and former Gaelic football manager and player who has served as a member of Roscommon County Council since June 2014. He played for the Castlerea St Kevin's club and at senior level for the Roscommon county team.
Dineen won three Roscommon Senior Football Championship titles while playing for Castlerea St Kevin's: in 2003, 2008[1] and 2009.[2] Castlerea lost to Sligo in 2010.[3]
In 2011, Dineen was appointed as manager of the Roscommon under-21 team for the 2012 season, having been a selector under the former management team.[4] He led Roscommon to the Connacht Under-21 Football Championship title in his first year in the job and later to the All-Ireland Under-21 Football Championship final, where his side lost to Dublin.
Dineen challenged Kevin McStay for the Roscommon senior management role ahead of the 2017 season, but pulled out a month later, stating that he had "strong reservations about the integrity of the selection and recruitment process".[5] [6]
In June 2014, Dineen was elected to Roscommon County Council[7] as an independent. In 2024, Dineen joined the Independent Ireland party.[8]