| Election Name: | Missouri State Senate elections, 2010 |
| Country: | Missouri |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | Missouri State Senate elections, 2008 |
| Previous Year: | 2008 |
| Next Election: | Missouri State Senate elections, 2012 |
| Next Year: | 2012 |
| Seats For Election: | 17 seats from even-numbered districts in the Missouri Senate |
| Election Date: | November 2, 2010 |
| Image1: | File:Charlie Shields.jpg |
| Leader1: | Charles W. Shields (retired) |
| Party1: | Republican Party (United States) |
| Leaders Seat1: | 34th-St. Joseph |
| Seats Before1: | 23 |
| Seats After1: | 26 |
| Seat Change1: | 3 |
| Popular Vote1: | 585,705 |
| Percentage1: | 62.36% |
| Leader2: | Victor Callahan |
| Party2: | Democratic Party (United States) |
| Leaders Seat2: | 11th-Independence |
| Seats Before2: | 11 |
| Seats After2: | 8 |
| Seat Change2: | 3 |
| Popular Vote2: | 311,264 |
| Percentage2: | 33.14% |
| Map Size: | 300px |
| Pro Tem | |
| Posttitle: | Pro Tem-designate |
| Before Election: | Charles W. Shields |
| Before Party: | Republican Party (United States) |
| After Election: | Rob Mayer |
| After Party: | Republican Party (United States) |
The 2010 Missouri Senate elections were held on November 2, 2010. Voters in the 17 even-numbered districts of the Missouri Senate voted for their representatives. Other elections were also held on November 2. The Missouri Republican Party gained three seats and maintained control of the Missouri Senate.
| Missouri Senate elections, 2010[1] | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Party | Votes | Percentage | Not up | Contested | Before | After | +/– | ||
| Republican | 585,705 | 62.36% | 13 | 10 | 23 | 26 | |||
| Democratic | 311,264 | 33.14% | 4 | 7 | 11 | 8 | |||
| Libertarian | 23,559 | 2.51% | 0 | 0 | 0 | 0 | |||
| Constitution | 12,201 | 1.30% | 0 | 0 | 0 | 0 | |||
| Independent | 6,512 | 0.69% | 0 | 0 | 0 | 0 | |||
| Totals | 939,235 | 100.00% | 17 | 17 | 34 | 34 | — | ||
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