| Walter Bain Reynolds | |
| Office1: | Ontario MPP |
| Term Start1: | 1937 |
| Term End1: | 1949 |
| Predecessor1: | George Taylor Fulford |
| Successor1: | Hugh Alexander Reynolds |
| Constituency1: | Leeds |
| Party: | Conservative |
| Birth Date: | 24 May 1869 |
| Birth Place: | Brockville, Ontario |
| Death Place: | Toronto, Ontario |
Walter Bain Reynolds (May 24, 1869 - March 12, 1949) was a politician in Ontario, Canada. He represented Leeds in the Legislative Assembly of Ontario from 1937 to 1949 as a Progressive Conservative.
The son of James Reynolds and Alice Riley, he was born in Brockville and was educated there. In 1921, Reynolds married Margaret Grant. He served as a public school trustee from 1905 to 1915, served on the public utilities commission from 1914 to 1922 and was mayor of Brockville from 1923 to 1928.[1]
During his time as mayor, Reynolds donated a swimming pavilion with change rooms to St. Lawrence Park on the Brockville waterfront.[2]
He died in office in 1949.[3]