| Robert Hamilton Butts | |
| Constituency Mp: | Cape Breton South and Richmond |
| Parliament: | Canadian |
| Predecessor: | Riding created in 1914 from Cape Breton South and Richmond |
| Successor: | William F. Carroll |
| Term Start: | 1917 |
| Term End: | 1921 |
| Birth Date: | August 4, 1871 |
| Birth Place: | Port Morien, Nova Scotia, Canada |
| Death Date: | November 29, 1943 |
| Nationality: | British subject |
| Party: | Unionist Party |
| Occupation: | barrister, lawyer |
Robert Hamilton Butts (August 4, 1871 in Port Morien, Nova Scotia, Canada - November 29, 1943) was a politician, barrister and lawyer. He was elected to the House of Commons of Canada as a member of the Unionist Party in the 1917 election to represent the riding of Cape Breton South and Richmond. He was defeated in the 1923 by-election for the riding of North Cape Breton and Victoria. Butts was also a Member of the Nova Scotia House of Assembly (1911–1917 and 1928–1933) representing the electoral district of Cape Breton County in two terms as a member of the Nova Scotia Conservative Party. He also served in the Legislative Council of Nova Scotia (1927–1928).