| Election Name: | 2018 Utah Senate election |
| Country: | Utah |
| Flag Year: | 2011 |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2016 Utah Senate election |
| Previous Year: | 2016 |
| Next Election: | 2020 Utah Senate election |
| Next Year: | 2020 |
| Seats For Election: | 15 of the 29 seats in the Utah State Senate |
| Majority Seats: | 15 |
| Election Date: | November 6, 2018 |
| Leader1: | Wayne L. Niederhauser (retired) |
| Party1: | Utah Republican Party |
| Leaders Seat1: | 9th district |
| Seats Before1: | 24 |
| Seats After1: | 23 |
| Seat Change1: | 1 |
| Popular Vote1: | 306,354 |
| Percentage1: | 57.29% |
| Leader2: | Gene Davis |
| Party2: | Utah Democratic Party |
| Leaders Seat2: | 3rd district |
| Seats Before2: | 5 |
| Seats After2: | 6 |
| Seat Change2: | 1 |
| Popular Vote2: | 216,893 |
| Percentage2: | 40.56% |
| Map Size: | 300px |
| President of the Senate | |
| Posttitle: | President |
| Before Election: | Wayne L. Niederhauser |
| Before Party: | Republican Party (United States) |
| After Election: | J. Stuart Adams |
| After Party: | Republican Party (United States) |
The 2018 Utah Senate election was held on November 6, 2018. Fourteen Senate seats were up for election. Prior to the election, the Republicans held a majority.
| Affiliation | Candidates | Votes | Vote % | Seats Won | Seats After | ||
|---|---|---|---|---|---|---|---|
| Republican | 15 | 306,354 | 57.29% | 10 (1) | 23 | ||
| Democratic | 13 | 216,893 | 40.56% | 4 (1) | 6 | ||
| United Utah | 3 | 5,421 | 1.01% | 0 | |||
| Independent American | 1 | 2,738 | 0.51% | 0 | |||
| Libertarian | 1 | 2,095 | 0.39% | 0 | |||
| Green | 1 | 1,225 | 0.23% | 0 | |||
| Total | 32 | 534,726 | 100.0% | 14 | 29 | ||
| District | Winner | Margin | ||
|---|---|---|---|---|
| District 8 | data-sort-value=1 | Democratic (flip) | 14.17% | |
| District 12 | data-sort-value=1 | Republican | 5.22% |
The election took place on November 6, 2018. Candidate list and results from the Lieutenant Governor of Utah.[1]