| Election Name: | 2004 Monaghan County Council election |
| Country: | Ireland |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 1999 Monaghan County Council election |
| Previous Year: | 1999 |
| Next Election: | 2009 Monaghan County Council election |
| Next Year: | 2009 |
| Seats For Election: | All 20 seats on Monaghan County Council |
| Election Date: | 11 June 2004 |
| Party1: | Sinn Féin |
| Seats1: | 7 |
| Seat Change1: | +1 |
| Party2: | Fine Gael |
| Seats2: | 7 |
| Seat Change2: | +1 |
| Party3: | Fianna Fáil |
| Seats3: | 5 |
| Seat Change3: | -3 |
| Party4: | Independent (politician) |
| Seats4: | 1 |
| Seat Change4: | +1 |
| Map Size: | 300px |
| Council control | |
| Posttitle: | Council control after election |
An election to Monaghan County Council took place on 11 June 2004 as part of that year's Irish local elections. 20 councillors were elected from four 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 | ±% |
|---|---|---|---|---|---|---|---|---|---|---|
| 7 | +1 | 9,332 | 31.05 | |||||||
| 7 | +1 | 8,982 | 29.89 | |||||||
| 5 | align=right | -3 | 8,826 | 29.37 | ||||||
| 1 | +1 | 2,913 | 9.69 | |||||||
| Totals | align=right | 20 | align=center | - | align=right | 30,053 | 100.00 | — |