| Mohammad-Sadegh Tabatabaei | |
| Term Start1: | 6 March 1944 |
| Term End1: | 12 March 1946 |
| Successor1: | Reza Hekmat |
| Term Start2: | 21 April 1949 |
| Term End2: | 10 May 1949 |
| Term Start4: | 18 March 1954 |
| Term End4: | 16 March 1960 |
| Constituency4: | Tehran |
| Term Start5: | 6 March 1944 |
| Term End5: | 12 March 1946 |
| Constituency5: | Tehran |
| Term Start6: | 11 February 1924 |
| Term End6: | 11 February 1926 |
| Constituency6: | Tehran |
| Term Start7: | 6 December 1914 |
| Term End7: | 13 November 1915 |
| Constituency7: | Tehran |
| Term Start8: | 15 November 1909 |
| Term End8: | 25 December 1911 |
| Constituency8: | Mashhad |
| Term Start9: | 1926 |
| Term End9: | 1928 |
| Monarch9: | Reza Shah Pahlavi |
| Term Start10: | 1923 |
| Term End10: | 1926 |
| Monarch10: | Ahmad Shah Qajar |
| Party: | National Union Socialist Party [1] Moderates [2] |
| Father: | Mirza Sayyed Mohammad Tabatabai |
Seyyed Mohammad-Sadegh Tabatabaei (Persian: سید محمدصادق طباطبایی) was an Iranian politician, constitutionalist activist affiliated with the Secret Society and journalist.[3]