| Election Name: | 2012 Wyoming Senate election |
| Country: | Wyoming |
| Type: | legislative |
| Previous Election: | 2010 Wyoming Senate election |
| Previous Year: | 2010 |
| Next Election: | 2014 Wyoming Senate election |
| Next Year: | 2014 |
| Seats For Election: | 15 of 30 seats in the Wyoming Senate (even-numbered seats up) |
| Leader1: | Jim Anderson |
| Party1: | Republican Party (United States) |
| Leaders Seat1: | 2nd district |
| Seats Before1: | 26 |
| Seats After1: | 26 |
| Popular Vote1: | 89,939 |
| Percentage1: | 82.12% |
| Leader2: | John Hastert |
| Party2: | Democratic Party (United States) |
| Leaders Seat2: | 13th district |
| Seats Before2: | 4 |
| Seats After2: | 4 |
| Popular Vote2: | 10,686 |
| Percentage2: | 9.76% |
| Map Size: | 400px |
| Senate President | |
| Before Election: | Jim Anderson |
| Before Party: | Republican Party (United States) |
| After Election: | Tony Ross |
| After Party: | Republican Party (United States) |
The 2012 Wyoming Senate election was held on November 6, 2012, to elect members to the Wyoming Senate for its 62nd session as part of the 2012 United States elections. Partisan primaries were held on August 21. Neither Republicans nor Democrats made any gains in the state senate. Of the fifteen seats up for election, only two saw competition between Republicans and Democrats, with each party winning one.
This election saw the newly-formed Country Party stand a handful of candidates against incumbent Republicans, who they saw as "essentially progressive big-government liberals."[1] No Country candidate won a seat.
| Party | Candidates | Votes | % | Seats | |||||
|---|---|---|---|---|---|---|---|---|---|
| Before | Up | Won | After | +/– | |||||
| Republican | 14 | 89,939 | 82.12 | 26 | 13 | 13 | 26 | ||
| Democratic | 3 | 10,686 | 9.76 | 4 | 2 | 2 | 4 | ||
| Country | 3 | 3,753 | 3.43 | 0 | 0 | 0 | 0 | ||
| Write-in | 5,150 | 4.70 | — | ||||||
| Valid ballots | 109,528 | 87.12 | — | ||||||
| Blank or invalid ballots | 16,198 | 12.88 | — | ||||||
| Total | 125,726 | 100% | 30 | 15 | 30 | ||||