Welland is a provincial electoral district in Ontario, Canada, represented in the Legislative Assembly of Ontario since the 2007 provincial election. Its population in 2006 was 112,875.

Welland riding consists of the cities of Welland, Thorold, and Port Colborne, the Township of Wainfleet, and the part of the City of St. Catharines lying south of a line drawn from the western city limit east along St. Paul Street West, northeast along St. Paul Crescent, east and south along Twelve Mile Creek, and east along Glendale Avenue to the eastern city limit.