| Honorific-Prefix: | The Honourable |
| Joseph Willie Comeau | |
| Office: | Senator for Nova Scotia |
| Appointed: | William Lyon Mackenzie King |
| Term Start: | December 1, 1948 |
| Term End: | January 10, 1966 |
| Office2: | MLA for Digby County |
| Term Start2: | February 19, 1907 |
| Term End2: | June 25, 1925 |
| Predecessor2: | Ambroise-Hilaire Comeau |
| Successor2: | William Hudson Farnham Jean-Louis Philippe Robicheau |
| Term Start3: | October 1, 1928 |
| Term End3: | June 9, 1949 |
| Predecessor3: | William Hudson Farnham Jean-Louis Philippe Robicheau |
| Successor3: | E. Keith Potter |
| Birth Name: | Joseph William Comeau |
| Birth Date: | 12 March 1876 |
| Birth Place: | Comeauville, Nova Scotia, Canada |
| Death Place: | Yarmouth, Nova Scotia, Canada |
| Spouse: | Grace Sheehan Zoé Doucet |
| Party: | Liberal |
| Occupation: | Fish merchant, teacher |
Joseph William (Willie) Comeau (March 12, 1876 - January 11, 1966) was a Canadian educator and political figure in Nova Scotia, Canada. He represented Digby County in the Nova Scotia House of Assembly from 1907 to 1925 and from 1928 to 1948 as a Liberal member. Comeau sat for Clare division in the Senate of Canada from 1948 to 1966.
He was born in Comeauville, Nova Scotia, the son of Louis Comeau and Catherine Bourneuf, and was educated at the Collège Sainte-Anne.[1]
Comeau served as a minister without portfolio in the province's Executive Council from 1911 to 1917, from 1921 to 1925 and from 1933 to 1948. He was a member of the Nova Scotia Legislative Council from 1925 to 1928. Comeau resigned his seat in the provincial assembly in 1917 to run unsuccessfully for a seat in the House of Commons.
He died in office at the age of 89 in Yarmouth.
Comeau was married twice: first to Grace Sheehan and then, after her death, to Zoé Doucet.[1] His son, Benoit Comeau served as the MLA for Clare from 1967 to 1981 and his grandson Robert Thibault served in the House of Commons from 2000 to 2008.