| Election Name: | 1998 Maine gubernatorial election |
| Country: | Maine |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1994 Maine gubernatorial election |
| Previous Year: | 1994 |
| Election Date: | November 3, 1998 |
| Next Election: | 2002 Maine gubernatorial election |
| Next Year: | 2002 |
| Image1: | Image:AngusKing.jpg |
| Nominee1: | Angus King |
| Party1: | Independent (United States) |
| Popular Vote1: | 246,772 |
| Percentage1: | 58.6% |
| Map Size: | 300px |
| Governor | |
| Before Election: | Angus King |
| Before Party: | Independent (United States) |
| After Election: | Angus King |
| After Party: | Independent (United States) |
| Nominee2: | James B. Longley Jr. |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 79,716 |
| Percentage2: | 18.9% |
| Nominee4: | Tom Connolly |
| Party4: | Democratic Party (United States) |
| Popular Vote4: | 50,506 |
| Percentage4: | 12.0% |
| Nominee5: | Pat LaMarche |
| Party5: | Green Party (United States) |
| Popular Vote5: | 28,722 |
| Percentage5: | 6.8% |
The 1998 Maine gubernatorial election took place on November 3, 1998 to elect the governor of Maine. Incumbent Independent governor Angus King won re-election to a second term, defeating Republican nominee James B. Longley Jr., Democratic nominee Thomas J. Connolly, Green Independent nominee Pat LaMarche and Taxpayers' Party nominee William P. Clarke Jr.
This election was the first since 1982 in which the winning candidate received greater than 50% of the vote. This was not achieved again until 2018. This is currently the most recent election that Maine elected an independent governor.