Sisir Kumar Mitra
| S.K. Mitra | |
|---|---|
| শিশির কুমার মিত্র | |
| S.K. Mitra | |
| Born | Sisir Kumar Mitra 24 October 1890 | 
| Died | 13 August 1963 (aged 72) | 
| Nationality | Indian | 
| Alma mater | University of Calcutta | 
| Known for | Work on the ionosphere | 
| Spouse | Lilavati Biswas (1914–1939) | 
| Awards | 
 | 
| Scientific career | |
| Fields | Radiophysics Atmospheric physics | 
| Institutions | Bankura Christian College Rajabazar Science College University of Paris University of Nancy University of Calcutta Curie Institute (Paris) | 
| Doctoral advisor | C.V. Raman Charles Fabry | 
| Other academic advisors | Jagadish Chandra Bose Marie Curie Camille Gutton | 
Sisir Kumar Mitra (or Shishirkumar Mitra) MBE, FNI, FASB, FIAS, FRS (24 October 1890 – 13 August 1963) was an Indian physicist.