Sadul Singh of Bikaner
| Maharaja Sadul Singh | |
|---|---|
| Maharaja of Bikaner | |
| Reign | 1943–1949 | 
| Predecessor | Ganga Singh | 
| Successor | Karni Singh | 
| Born | 7 September 1902 | 
| Died | 25 September 1950 | 
| Consort | Maharani Sudarshan Prasad Kanwarji Sahiba | 
| Issue | Sushila Kunwariji Karni Singh Amar Singh | 
| Father | Ganga Singh | 
| Mother | Maharani Vallabh Kanwarji | 
Lieutenant-General Sir Sadul Singh GCSI, GCIE, KStJ, CVO (7 September 1902 – 25 September 1950) was the last reigning Maharaja of Bikaner from 2 February 1943 to 30 March 1949, continuing as Head of the House of Bikaner and holding the title of Maharaja of Bikaner until his death.