The Naturist Society (TNS) is a national organization for North American naturism or nudism based in Oshkosh, Wisconsin in the U.S.A It publishes a quarterly periodical called Nude and Natural which documents and coordinates naturist activities and provides information about issues related to naturism.

TNS organizes several annual gatherings in various regions of North America, such as The Western Naturist Gathering. The gatherings feature workshops and seminars on many topics, especially those that relate to body health and ongoing legal issues.

TNS also provides support for various Special Interest Groups (SIGs) for TNS members who wish to share hobbies or other interests with fellow naturists, such as the amateur radio SIG.

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