| R. Sankara Narayana Thampi | |
| Office: | Speaker of the Kerala Legislative Assembly |
| Term Start: | 1957 |
| Predecessor: | Office established |
| Term End: | 1959[1] |
| Successor: | K. M. Seethi Sahib |
| Office1: | Member of the Kerala Legislative Assembly |
| Constituency1: | Chengannur |
| Term Start1: | 1957 |
| Predecessor1: | Constituency created |
| Term End1: | 1959 |
| Successor1: | T. Kunjukrishna Pillai |
| Office2: | Member of the Travancore-Cochin Legislative Assembly |
| Constituency2: | Mavelikkara |
| Term Start2: | 1954 |
| Term End2: | 1956 |
| Birth Date: | 30 September 1911 |
R. Sankara Narayana Thampi (30 September 1911 in Alleppey - 2 November 1989) was a freedom fighter, Indian National Congress member, Communist Party of India member, and activist who served as the First Speaker of the Kerala Legislative Assembly from April, 1957 to July, 1959.[2]