Lambton Mall is a shopping mall located in Sarnia, Ontario. It opened in 1971 and through several expansions now has 650,000 square feet of retail space. It is bounded by London Road, Lambton Mall Road, and Exmouth Street. In the 1990s, Lambton Mall underwent several expansions. Teppermans, a furniture store in a separate building on the mall parking lot was replaced by a Montana's.