| Election Name: | 2009 Roscommon County Council election |
| Country: | Ireland |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 2004 Roscommon County Council election |
| Previous Year: | 2004 |
| Next Election: | 2014 Roscommon County Council election |
| Next Year: | 2014 |
| Seats For Election: | All 26 seats on Roscommon County Council |
| Election Date: | 5 June 2009 |
| Party1: | Fine Gael |
| Seats1: | 10 |
| Seat Change1: | - |
| Party2: | Fianna Fáil |
| Seats2: | 8 |
| Seat Change2: | -1 |
| Party3: | Sinn Féin |
| Seats3: | 1 |
| Seat Change3: | - |
| Party4: | Independent (politician) |
| Seats4: | 7 |
| Seat Change4: | +1 |
| Map Size: | 300px |
| Council control | |
| Posttitle: | Council control after election |
An election to Roscommon County Council took place on 5 June 2009 as part of that year's Irish local elections. 26 councillors were elected from five local electoral areas (LEAs) for a five-year term of office on the electoral system of proportional representation by means of the single transferable vote (PR-STV).
| Party | valign=top | Seats | valign=top | ± | valign=top | First Pref. votes | valign=top | FPv% | valign=top | ±% |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 | align=right | - | 12,621 | 36.47 | ||||||
| 8 | align=right | -1 | 10,118 | 29.24 | ||||||
| 1 | align=right | - | 1,467 | 4.24 | ||||||
| 7 | +1 | 10,281 | 29.71 | |||||||
| Totals | align=right | 26 | align=center | - | align=right | 34,606 | 100.00 | — |