| S.M Siddaiah | |
| Birth Date: | August 15, 1918 |
| Birth Place: | Sosale |
| Death Date: | July 7,2011 |
| Death Place: | Mysuru |
| Constituency1: | Mysore |
| Term Start1: | 5 April 1957 |
| Term End1: | 31 March 1962 |
| Successor1: | M. Shankaraiya |
| Office: | Member of Parliament, Lok Sabha |
| Constituency: | Chamarajanagar (SC) |
| Term: | 5 April 1957 – 18 January 1977 |
| Successor: | B Rachaiah |
| Party: | Indian National Congress (1952–1977), Janata Party (1977–2011), Kisan Mazdoor Praja Party (until 1952) |
| Spouse: | D. Mahadevamma |
| Children: | 7; 4 sons and 3 daughters |
S. M. Siddaiah (1918–2011) was an Indian politician who was a Member of the Indian National Congress and held many posts in the Union Government and MP for the Chamarajanagar constituency from 1957 to 1977. (Chamarajanagar seat was a part of Mysore seat before 1967)[1] [2] Siddaiah died in 2011.[3]