Mosop Constituency is an electoral constituency in Kenya. It is one of six constituencies of Nandi County. The constituency was established for the 1966 elections. The constituency has seven wards, all electing Members of County Assembly (MCAs) for the Nandi County Assembly.
| Elections | MP[1] | Party | Notes |
|---|---|---|---|
| 1966 | Hon Gerald Nathaniel Kalya | KANU | Multi-party. |
| 1969 | Hon Gerald Nathaniel Kalya | KANU | One-party system, de facto. |
| 1974 | Hon Robert Tiongoi arap Tanui | KANU | One-party system, de facto. |
| 1979 | Hon Stanley Kiptoo Metto | KANU | One-party system, de facto. |
| 1983 | Hon Stanley Kiptoo Metto | KANU | One-party system, de jure. |
| 1988 | Hon Robert Tiongoi arap Tanui | KANU | One-party system, de jure, mlolongo system of election deployed. |
| 1990 | Hon Benjamin Kiprono Kositany | KANU | By-elections, One-party system. |
| 1992 | Hon John Kipkorir Sambu | KANU | Multi-party. |
| 1997 | Hon John Kipkorir Sambu | KANU | Multi-party. |
| 2002 | Hon John Kipkorir Sambu | KANU | Multi-party. |
| 2007 | Hon David Koech | ODM | Multi-party. |
| 2013 | Hon Stephen Kirwa Bitok | URP | Multi-party. |
| 2017 | Hon Vincent Kipkurui Tuwei | Jubilee Party | Multi-party. |
| 2022 | Hon Abraham Kirwa | UDA | Multi-party. |
| Wards | ||
| Ward | Area Sq. km | Registered Voters |
|---|---|---|
| Kabisaga | 78.80 | 19,029 |
| Kabiyet | 77.20 | 19,262 |
| Kipkaren | 93.90 | 19,147 |
| Kurgung / Surungai | 82.20 | 18,225 |
| Ndalat | 75.10 | 18,651 |
| Sangalo | 121.10 | 21,390 |
| Total | 601.60 | 134,648 |
| *September 2005.[2] | ||