| Serge Fontaine | |
| Office: | Member of the National Assembly of Quebec for Nicolet-Yamaska |
| Predecessor: | Benjamin Faucher |
| Successor: | District abolished in 1981 |
| Term Start: | 1976 |
| Term End: | 1981 |
| Birth Date: | 17 September 1947 |
| Birth Place: | Villeroy, Quebec, Canada |
| Party: | Coalition Avenir Québec |
| Otherparty: | Conservative Union Nationale |
Serge Fontaine (born September 17, 1947) is a Canadian politician in the province of Quebec.
He was born on September 17, 1947, in Villeroy, Quebec and was an attorney.
Fontaine was elected as a Union Nationale candidate to the provincial legislature in the district of Nicolet with 35% of the vote in the 1976 election. He served as his party's Deputy House Whip in 1980 and 1981. He finished a close third with 32% of the vote against Parti Québécois candidate Yves Beaumier and lost in the 1981 election.
Fontaine helped found the modern version of the Conservative Party of Quebec and served for a time as its leader. In November 2011, he resigned and joined the Coalition Avenir Québec.[1]