Marie-Pierre Arthur is the stage name of Marie-Pierre Fournier, a Canadian pop singer-songwriter from Quebec. Originally from Grande-Vallée, she is currently based in Montreal.

Formerly a backing musician and vocalist for artists such as Karkwa, Galaxie, Ariane Moffatt, Stefie Shock, Nanette Workman and Édith Butler, she released her self-titled debut album as a solo artist in 2009. Her followup, Aux alentours, was released in 2012 and was named as a longlisted nominee for the 2012 Polaris Music Prize on June 14, 2012. She also appeared as a guest vocalist on Buck 65's 20 Odd Years.