| 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 - 2 November 1989) was a freedom fighter, Indian National Congress member, Communist Party of India member, and activist who was born in Alleppey. He served as the First Speaker of the Kerala Legislative Assembly from April, 1957 to July, 1959.[2]