| Office: | Senator |
| Term Start: | 23 June 1965 |
| Term End: | 1 June 1973 |
| Constituency: | National University |
| Birth Date: | 5 June 1919 |
| Birth Place: | Dublin, Ireland |
| Death Place: | Dublin, Ireland |
| Party: | Independent |
| Children: | 7 |
| Alma Mater: | University College Dublin |
| Relatives: | Ernest Alton (uncle) |
Bryan Gerard Alton (5 June 1919 – 18 January 1991) was an Irish physician and member of Seanad Éireann from 1965 to 1973.[1]
He born in Dublin on 5 June 1919, the only child of Norman Alton, a bank inspector, and his wife, Mary Frances (née Hayes).[2] He was educated at St Mary's College, Dublin, Castleknock College and University College Dublin (UCD). He graduated from UCD in 1946 with a degree in medicine.[2]
He was the personal doctor of Éamon de Valera.[3] His uncle Ernest Alton, was also a Senator.[2]
He was elected to the 11th Seanad in 1965 for the National University constituency.[1] He was re-elected to the Seanad in 1969. He did not contest the 1973 Seanad election.[1]
He was president of the Royal College of Physicians of Ireland from 1974 to 1977.[2]