John Alexander Wilson (15 June 1809 – 5 June 1887) was an Anglican missionary and a member of the Church Missionary Society (CMS) mission in New Zealand in the 19th century. He entered the Royal Navy in 1822 as a gentleman volunteer. He participated in the capture of a pirate vessel in the Bay of Campeche off Mexico, and the rescue in 1824 by HMS Windsor Castle of John VI of Portugal out of the hands of a faction in the April Revolt. He married Anne Catherine Hawker in Jersey in 1828. Wilson retired from the Royal Navy and in 1832 he joined the CMS as a lay missionary.