Do Canada passport holders need a visa to visit GM?

No visa is required. Canadian passport holders can enter The Gambia visa-free for short tourist stays because Canada is a Commonwealth member, and Commonwealth citizens are exempt from Gambian entry visas. A Canadian ordinary passport holder does not need a visa to visit The Gambia for tourism. The Gambia grants visa-free entry to citizens of Commonwealth countries (which includes Canada), as well as to the UK, EU members, and ECOWAS nationals. This is confirmed both by the official Gambia government immigration pages and by the Government of Canada travel advisory. On arrival, travelers are typically admitted for an initial stay of up to 30 consecutive days, extendable for a further 30 days through the Gambia Immigration Department; the Commonwealth exemption framework allows for stays up to 90 days. The Gambia is not in the Schengen area, so Schengen 90/180 and ETIAS rules do not apply. There is no entry visa fee for visa-exempt travelers, though a security/airport fee applies on arrival, and a passport valid for the duration of stay (six months recommended) plus onward/return travel evidence is advised. Travelers should confirm boarding conditions with their airline before departure.