| Election Name: | 1999 Louth County Council election |
| Country: | Ireland |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | yes |
| Previous Election: | 1991 Louth County Council election |
| Previous Year: | 1991 |
| Next Election: | 2004 Louth County Council election |
| Next Year: | 2004 |
| Seats For Election: | All 26 seats to Louth County Council |
| Election Date: | 10 June 1999 |
| Party1: | Fianna Fáil |
| Seats1: | 14 |
| Seat Change1: | +2 |
| Party2: | Fine Gael |
| Seats2: | 7 |
| Seat Change2: | +1 |
| Party3: | Sinn Féin |
| Seats3: | 1 |
| Seat Change3: | 0 |
| Party4: | Labour Party (Ireland) |
| Seats4: | 1 |
| Seat Change4: | -1 |
| Party5: | Independent politician (Ireland) |
| Seats5: | 3 |
| Seat Change5: | 0 |
| Party6: | Progressive Democrats |
| Seats6: | 0 |
| Seat Change6: | -2 |
| Map Size: | 300px |
| Council control | |
| Posttitle: | Council control after election |
| After Election: | Fianna Fail |
An election to Louth County Council took place on 10 June 1999 as part of that year's Irish local elections. 26 councillors were elected from five 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 | ±% |
|---|---|---|---|---|---|---|---|---|---|---|
| 14 | +2 | 14,166 | 40.14 | |||||||
| 7 | +1 | 9,167 | 25.97 | |||||||
| 1 | 0 | 3,373 | 9.56 | |||||||
| 1 | align=right | -1 | 2,573 | 7.29 | ||||||
| 3 | 0 | 3,818 | 10.82 | |||||||
| 0 | align=right | -2 | 721 | 2.04 | ||||||
| Totals | align=right | 26 | 0 | align=right | 35,294 | 100.00 | — |