| William Collins Speare | |
| Birth Date: | 24 August 1915 |
| Birth Place: | Winnipeg, Manitoba |
| Death Place: | Quesnel, British Columbia |
| Office: | MLA for Cariboo |
| Term: | 1957–1966 |
| Party: | Social Credit Party of British Columbia |
William Collins Speare (August 24, 1915 – May 31, 1999) was a Canadian politician. He served in the Legislative Assembly of British Columbia from 1957 to 1966, as a Social Credit member for the constituency of Cariboo.[1] From 1964 to 1966, he served as the deputy speaker of the Legislature.