| Election Name: | 2009 South Dublin County Council election |
| Country: | Ireland |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 2004 South Dublin County Council election |
| Previous Year: | 2004 |
| Next Election: | 2014 South Dublin County Council election |
| Next Year: | 2014 |
| Seats For Election: | All 26 seats on South Dublin County Council |
| Election Date: | 5 June 2009 |
| Party1: | Labour Party (Ireland) |
| Seats1: | 9 |
| Seat Change1: | +2 |
| Party2: | Fine Gael |
| Seats2: | 8 |
| Seat Change2: | +5 |
| Party3: | Fianna Fáil |
| Seats3: | 4 |
| Seat Change3: | -2 |
| Party4: | Sinn Féin |
| Seats4: | 3 |
| Seat Change4: | 0 |
| Party5: | People Before Profit Alliance |
| Seats5: | 1 |
| Seat Change5: | +1 |
| Party6: | Independent (politician) |
| Seats6: | 1 |
| Seat Change6: | -1 |
| Party7: | Green Party (Ireland) |
| Seats7: | 0 |
| Seat Change7: | -2 |
| Party8: | Socialist Party (Ireland) |
| Seats8: | 0 |
| Seat Change8: | -1 |
| Party9: | Progressive Democrats |
| Seats9: | 0 |
| Seat Change9: | -2 |
| Map Size: | 300px |
| Council control | |
| Posttitle: | Council control after election |
An election to South Dublin County Council took place on 5 June 2009 as part of that year's Irish local elections. 26 councillors were elected from five electoral divisions using the Single transferable vote system for a five-year term of office.
| Party | valign=top | Seats | valign=top | ± | valign=top | First Pref. votes | valign=top | FPv% | valign=top | ±% |
|---|---|---|---|---|---|---|---|---|---|---|
| 9 | +2 | 21,813 | 24.13 | |||||||
| 8 | +5 | 23,698 | 26.22 | |||||||
| 4 | align=right | -2 | 15,290 | 16.92 | ||||||
| 3 | 0 | 9,661 | 10.69 | |||||||
| 1 | +1 | 5,721 | 6.33 | |||||||
| 1 | align=right | -1 | 7,997 | 8.85 | ||||||
| 0 | align=right | -2 | 3,345 | 3.70 | ||||||
| 0 | align=right | -1 | 2,159 | 2.39 | ||||||
| 0 | align=right | -2 | N/A | N/A | ||||||
| Totals | align=right | 26 | 0 | align=right | 90,389 | 100.00 | — |