| Office: | Senator |
| Term Start: | 12 September 2002 |
| Constituency: | Administrative Panel |
| Birth Date: | 20 November 1965 |
| Birth Place: | Cavan, Ireland |
| Nationality: | Irish |
| Party: | Fianna Fáil |
| Relations: | John Wilson (uncle) |
Diarmuid Wilson (born 20 November 1965) is an Irish Fianna Fáil politician who has served as a Senator for the Administrative Panel since September 2002.[1]
A member of Cavan County Council from 1999 to 2004, he was first elected to the Seanad in 2002 and was re-elected in 2007 and 2011.[2] He is the nephew of John Wilson, who was a TD, Minister and Tánaiste. He is the Fianna Fáil whip in the Seanad and spokesperson on Defence. Wilson is a member of the cross-party Oireachtas Friends of Israel in the Oireachtas.[3]