| Raja Pratap Bahadur Singh | |
| Raja Bahadur Ruler of Pratapgarh Estate | |
| Reign: | 1889-1921 |
| Religion: | Hinduism |
| Predecessor: | Raja Ajit Singh |
| Successor: | Raja Ajit Pratap Singh |
| Issue: | Raja Ajit Pratap Singh Rani Padmavati Devi |
| Royal House: | Somvanshi |
| Father: | Raja Ajit Singh |
| Death Date: | 1921 |
Raja Pratap Bahadur Singh (1889–1921) was a Somvanshi Rajput ruler of Pratapgarh Estate of Oudh, British India.[1]
. The golden book of India . Roper Lethbridge. Roper Lethbridge . Aakar . illustrated . 2005 . 978-81-87879-54-1 . 405 .