The Camden Society was a text publication society founded in London in 1838 to publish early historical and literary materials, both unpublished manuscripts and new editions of rare printed books. It was named after the 16th-century antiquary and historian William Camden. In 1897 it merged with the Royal Historical Society, which continues to publish texts in what are now known as the Camden Series.
The formation of the Camden Society in 1838 was the initiative of Thomas Wright, John Gough Nichols, and John Bruce. It was modelled on the Surtees Society (founded in 1834 to publish materials relating to the history of northern England), of which Nichols had been the first treasurer. Other founder members included Thomas Amyot,Thomas Crofton Croker, Sir Frederic Madden, John Payne Collier, and Rev. Joseph Hunter. Lord Francis Egerton served as the first President.
For an annual subscription (originally £1 per year), members received the Society's publications, roughly two volumes per year. The original membership was 500. In 1838, 20% of members were clergymen, 9% held legal qualifications, and 36% were Fellows of the Society of Antiquaries of London. Membership reached a peak of 1250 in 1845, and began to decline thereafter. By the 1880s, the Camden Society was experiencing financial problems, brought about in part by a project to create a general index to its first 100 volumes. On 2 May 1897 it was amalgamated with (or effectively absorbed into) the Royal Historical Society.