Sault Ste. Marie is a provincial electoral district in Ontario, represented in the Legislative Assembly of Ontario since 1908. The district covers the City of Sault Ste. Marie, located in the Algoma District along the St. Marys River at the Canada–U.S. border.

The riding has a long political history, having been a key voice for northern Ontario’s economic and social development. It is known for its industries in steel production, forestry, shipping, and energy, while also serving as a hub for post-secondary education, healthcare, and cross-border trade.

Today, Sault Ste. Marie continues to represent the unique challenges and opportunities of northern communities, balancing economic growth with environmental stewardship and ensuring that residents in the region have a strong voice at Queen’s Park.