| Robert Pitcairn Buffett | |
| Office: | Chief Magistrate of the Pitcairn Islands |
| Term: | 1868 |
| Predecessor: | Thursday October Christian II |
| Successor: | Moses Young |
| Birth Date: | 26 March 1830 |
| Birth Place: | Pitcairn Island |
| Death Date: | 2 January 1916 (aged 85) |
| Death Place: | Pitcairn Island |
| Spouse: | Lydia Young |
| Mother: | Dorothy Young |
| Father: | John Buffett |
Robert Pitcairn Buffett (26 March 1830 – 2 January 1916) was the Chief Magistrate of the Pitcairn Islands in 1868.
Robert Pitcairn Buffet was born on 26 March 1830 to John Buffett and Dorothy Young. He married twice, Lydia Young on 7 December 1862, and Mary Elizabeth Young in September 1896. He died on 2 January 1916 and was buried on Pitcairn Island on 23 January 1916.[1]