Terry Leyden
| Election | Party | Share | 1st Pref | Quotas | Elected |
| 1974 Local Election - Roscommon |  | 7.0% | 682 | 0.70 |  |
| 1977 general election - Roscommon–Leitrim |  | 18.5% | 6563 | 0.74 | |
| 1979 Local Election - Roscommon | | 15.6% | 1580 | 1.56 | |
| 1981 general election - Roscommon | | 21.4% | 7095 | 0.86 | |
| 1982 (Feb) general election - Roscommon | | 26.6% | 8450 | 1.06 | |
| 1982 (Nov) general election - Roscommon | | 24.8% | 8121 | 0.99 | |
| 1985 Local Election - Roscommon | | 20.8% | 1101 | 1.24 | |
| 1987 general election - Roscommon | | 22.4% | 7263 | 0.90 | |
| 1989 general election - Roscommon | | 20.8% | 6424 | 0.83 | |
| 1992 general election - Longford–Roscommon | | 9.6% | 4331 | 0.48 | |
| 1997 general election - Longford–Roscommon | | 7.0% | 3308 | 0.35 | |
| 1999 Local Election - Mid Roscommon | | 16.1% | 898 | 0.97 | |
| 2002 Seanad Election - Labour Panel | | 5.2% | 50000 | 0.63 | |
| 2007 Seanad Election - Labour Panel | | 5.3% | 57000 | 0.64 | |
| 2011 Seanad Election - Labour Panel | | 4.8% | 51000 | 0.57 | |
| 2016 Seanad Election - Labour Panel | | 3.9% | 44000 | 0.47 | |