| Valentin Mejinschi | |
| Office: | Moldovan Ambassador to Poland |
| Termstart: | 2 September 2009 |
| Termend: | 11 November 2009 |
| President: | Vladimir Voronin Mihai Ghimpu (acting) |
| Primeminister: | Zinaida Greceanîi Vitalie Pîrlog (acting) Vladimir Filat |
| Predecessor: | Boris Gămurari |
| Successor: | Iurie Bodrug |
| Office1: | Deputy Prime Minister of Moldova |
| Termstart1: | 21 October 2008 |
| Termend1: | 10 June 2009 |
| President1: | Vladimir Voronin |
| Primeminister1: | Zinaida Greceanîi |
| Office2: | Minister of Internal Affairs |
| Termstart2: | 31 March 2008 |
| Termend2: | 21 October 2008 |
| President2: | Vladimir Voronin |
| Primeminister2: | Zinaida Greceanîi |
| Predecessor2: | Gheorghe Papuc |
| Successor2: | Gheorghe Papuc |
| Birth Place: | Corotna, Moldavian SSR, Soviet Union |
Valentin Mejinschi (born 24 January 1967) is a Moldovan police general and former politician. He held the office of Minister of Internal Affairs of Moldova[1] in 2008 and Deputy Prime Minister from 2008 to 2009.