| Honorific-Prefix: | The Honourable |
| William Miller | |
| Office: | Senator for Richmond, Nova Scotia |
| Appointed: | Royal Proclamation |
| Term Start: | 1867 |
| Term End: | 1912 |
| Office2: | Member of the Nova Scotia House of Assembly for Richmond |
| Term Start2: | 1863 |
| Term End2: | 1867 |
| Birth Date: | 12 February 1835 |
| Birth Place: | Antigonish, Nova Scotia |
| Party: | Liberal-Conservative |
William Miller (February 12, 1835 - February 23, 1912) was a Canadian politician.
Born in Antigonish, Nova Scotia, the son of Charles Miller and Elizabeth Smith, he was educated at the Antigonish Academy, studied law and was called the bar of Nova Scotia in 1860. He set up practice in Arichat.
In 1863, he was elected as a Reformer to the Legislative Assembly of Nova Scotia representing the Cape Breton riding of Richmond County. In 1867, at the age of 32, he was summoned to the Senate of Canada representing the senatorial division of Richmond, Nova Scotia. He was the youngest person ever summoned to the Canadian Senate.[1] From 1883 to 1887, he was the Speaker of the Senate of Canada. In 1871, Miller married Annie Cochran. He served until his death in 1912.