| Montana State Senate | |
| Legislature: | Montana State Legislature |
| Coa Pic: | Montana-StateSeal.svg |
| House Type: | Upper house |
| Term Limits: | 2 terms (8 years) |
| New Session: | January 2021 |
| Leader1 Type: | President of the Senate |
| Leader1: | Scott Sales |
| Party1: | (R) |
| Election1: | January 2, 2017 |
| Leader2 Type: | President pro Tempore |
| Leader2: | Mark Blasdel |
| Party2: | (R) |
| Election2: | January 7, 2019 |
| Leader3 Type: | Majority Leader |
| Leader3: | Fred Thomas |
| Party3: | (R) |
| Election3: | January 2, 2017 |
| Leader4 Type: | Minority Leader |
| Leader4: | Jon Sesso |
| Party4: | (D) |
| Election4: | January 5, 2015 |
| Term Length: | 4 years |
| Authority: | Article V, Section 2, Montana Constitution |
| Salary: | $92.46/day + per diem |
| Members: | 50 |
| Last Election1: | November 6, 2018 (25 seats) |
| Next Election1: | November 3, 2020 (25 seats) |
| Redistricting: | Montana Districting and Apportionment Commission |
| Political Groups1: | Republican Party (30) Democratic Party (20) |
| Meeting Place: | Senate Chamber Montana State Capitol Helena, Montana |
| Website: | https://leg.mt.gov/senate/ |
The Montana State Legislature is the state legislature of the U.S. state of Montana. It is composed of the 100-member Montana House of Representatives and the 50-member Montana Senate.[1]
This is a list of current and former notable members of the Montana Senate.