Maina Sage (born 10 May 1975) is a French politician from French Polynesia. She was born in Papeete. She is a member of the Tapura Huiraatira party. Since 2014, she has served as a member of the National Assembly for French Polynesia's 1st constituency. From 2008 to 2017, she was a member of the Assembly of French Polynesia.