| Election Name: | 1999 Roscommon County Council election |
| Country: | Ireland |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 1991 Roscommon County Council election |
| Previous Year: | 1991 |
| Next Election: | 2004 Roscommon County Council election |
| Next Year: | 2004 |
| Seats For Election: | All 26 seats to Roscommon County Council |
| Election Date: | 10 June 1999 |
| Party1: | Fine Gael |
| Seats1: | 12 |
| Seat Change1: | +1 |
| Party2: | Fianna Fáil |
| Seats2: | 9 |
| Seat Change2: | -1 |
| Party3: | Progressive Democrats |
| Seats3: | 1 |
| Seat Change3: | +1 |
| Party4: | Independent politician (Ireland) |
| Seats4: | 4 |
| Seat Change4: | -1 |
| Map Size: | 300px |
| Council control | |
| Posttitle: | Council control after election |
An election to Roscommon County Council took place on 10 June 1999 as part of that year's Irish local elections. 26 councillors were elected from six local electoral areas for a five-year term of office on the 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 | ±% |
|---|---|---|---|---|---|---|---|---|---|---|
| 12 | +1 | 11,134 | 38.95 | |||||||
| 9 | align=right | -1 | 10,529 | 36.83 | ||||||
| 1 | +1 | 771 | 2.69 | |||||||
| 4 | align=right | -1 | 5,846 | 20.45 | ||||||
| Totals | align=right | 26 | align=center | - | align=right | 28,586 | 100.00 | — |