| Mehmed Sadık | |
| Honorific-Suffix: | Pasha |
| Nationality: | Ottoman |
| Office1: | Grand Vizier of the Ottoman Empire |
| Term Start1: | 18 April 1878 |
| Term End1: | 28 May 1878 |
| Predecessor1: | Ahmed Vefik Pasha |
| Successor1: | Mehmed Rushdi Pasha |
| Birth Date: | 1826 |
| Birth Place: | Ottoman Empire |
| Death Date: | 1901 |
| Death Place: | Ottoman Empire |
Mehmed Sadık Pasha (Turkish, Ottoman (1500-1928);: '''محمد صادق پاشا''') (1826 – 1901) was an Ottoman conservative statesman and a member of the Senate.[1] He was Grand Vizier of the Ottoman Empire from 18 April 1878 until 28 May 1878.[2] He also served as governor of the Aidin Vilayet of the Ottoman Empire.