The Société Jersiaise (French pronunciation: [sɔsjete ʒɛʁsjɛz]) is a learned society in Jersey which was founded in 1873, in the manner of similar county societies in the United Kingdom and Sociétés Savantes in France for the purposes of: The Société continues to fulfill these objectives, with two important differences – because it can no longer be said that French is the official language, the encouragement of its use has been dropped and, secondly, an important addition to the aims is the study of all branches of the natural history of the island and publication of the results of fieldwork in these subjects.

Post-war the Société continued to grow and add to its collections to the extent that during the 1970s a new headquarters was built adjoining the Pier Road Museum.

In 1990 the Société also entered into a working partnership with the National Trust for Jersey which its members had helped to found in 1937, to develop a country life museum at Hamptonne, St Lawrence, a late medieval farm with manorial pretensions, the National Trust purchasing the property, the Société financing the restoration.

The Société library contains much unique and important material about Jersey and comparative academic literature in the form of published works and manuscript documents including maps.

A professional photographic archivist is employed by the Société to manage the collection of approximately 100,000 images dating from the mid-1840s to the present day.

Notable members have included Dr Robert Ranulph Marett, the leading early evolutionary anthropologist, whose father Robert Pipon Marett was a founder member; Dr Arthur Mourant FRS a noted haematologist, George Reginald Balleine historian and clergyman, and Breton architect Pierre Le Moine.