Thetis class

Thetis class may refer to one of the following ship classes:


 * Thetis-class patrol vessel, a class of four vessels operated by the Royal Danish Navy from 1991 to present
 * Thetis-class gunboat, a class of five anti-submarine ships operated by the German Navy from 1962 until the 1990s, then the Hellenic Navy from 1991 until 2010
 * Thetis-class patrol boat, a class of seventeen patrol boats operated by the United States Coast Guard