Joan Gideon Loten (also spelt Johan or John) (16 May 1710 – 25 February 1789) was a Dutch servant in the colonies of the Dutch East India Company (VOC), the 29th Governor of Zeylan, Fellow of the Royal Society (elected 1760) and Fellow of the Society of Antiquaries of London (elected 1761). During his time in the colonies he made collections of natural history. In 1758 he moved to Holland. Nine months after his return from the Dutch East Indies he moved to London, where he lived for 22 years and interacted with scholarly societies and shared his natural history illustrations and collections.