| Sir Reginald Butler | |
| Birth Name: | Robert Reginald Frederick Butler |
| Birth Date: | 19 June 1866 |
| Birth Place: | Edford, Somerset, England |
| Nationality: | British |
| Occupation: | Businessman |
Sir Robert Reginald Frederick Butler, 1st Baronet (19 June 1866 – 19 November 1933) was an English businessman.
Butler was born in Edford, Somerset, and educated at Bedford School. He was director of a number of catering and confectionery companies, notably chairman of United Dairies.[1] He was created a Baronet in the 1922 New Year Honours for his wartime services.