| Election Name: | 1999 Monaghan County Council election |
| Country: | Ireland |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 1991 Monaghan County Council election |
| Previous Year: | 1991 |
| Next Election: | 2004 Monaghan County Council election |
| Next Year: | 2004 |
| Seats For Election: | All 20 seats to Monaghan County Council |
| Election Date: | 10 June 1999 |
| Party1: | Fianna Fáil |
| Seats1: | 8 |
| Seat Change1: | - |
| Party2: | Fine Gael |
| Seats2: | 6 |
| Seat Change2: | -1 |
| Party3: | Sinn Féin |
| Seats3: | 6 |
| Seat Change3: | +4 |
| Party4: | Independent politician (Ireland) |
| Seats4: | 0 |
| Seat Change4: | -3 |
| Map Size: | 300px |
| Council control | |
| Posttitle: | Council control after election |
An election to Monaghan County Council took place on 10 June 1999 as part of that year's Irish local elections. 20 councillors were elected from four 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 | ±% |
|---|---|---|---|---|---|---|---|---|---|---|
| 8 | align=right | - | 10,369 | 38.54 | ||||||
| 6 | align=right | -1 | 7,018 | 26.09 | ||||||
| 6 | +4 | 6,709 | 24.94 | |||||||
| 0 | align=right | -3 | 1,915 | 7.12 | ||||||
| Totals | align=right | 20 | align=center | - | align=right | 26,901 | 100.00 | — |