Collegiate secret societies in North America

There are many collegiate secret societies in North America. They vary greatly in their level of secrecy and the degree of independence from their universities. A collegiate secret society makes a significant effort to keep affairs, membership rolls, signs of recognition, initiation, or other aspects secret from the public.

Some collegiate secret societies are referred to as "class societies", which restrict membership to one class year. Most class societies are restricted to the senior class and are therefore also called senior societies on many campuses.