| Zotique Mageau | |
| Office: | Ontario MPP |
| Term Start: | 1911 |
| Term End: | 1926 |
| Predecessor: | Azaire Adulphe Aubin |
| Successor: | Théodore Legault |
| Constituency: | Sturgeon Falls |
| Birth Date: | 6 April 1865 |
| Birth Place: | Sainte-Julienne, Canada East |
| Death Place: | Sturgeon Falls, Ontario |
| Occupation: | Businessman |
| Spouse: | Clara Perrault (m. 1912) |
Zotique Mageau (April 6, 1865 - March 14, 1951) was an Ontario merchant, notary and political figure. He represented Sturgeon Falls in the Legislative Assembly of Ontario as a Liberal member from 1911 to 1926.
He was born in Sainte-Julienne, Canada East, the youngest son of Fabien (Félix) Mageau and Judith Roy. In 1887, he married Saladine Serré; he married Clara Perrault in 1912 after her death. He opened a general store in Sturgeon Falls with his brother-in-law, Eugène Serré. He also established a lumber company, and was one of the founders of Sturgeon Falls, Ontario.