JS Wakasa (AGS-5104) was a Futami-class oceanographic research ship for the Japan Maritime Self-Defense Force.

Wakasa was laid down on 21 August 1984 and launched on 21 May 1985 by Hitachi Zosen Corporation Maizuru Shipyard.

She was commissioned on 25 February 1986 and was incorporated into the Marine Service Corps and deployed in Yokosuka.

On September 18, 2009, Naoko Matsuo, 3rd class Kaisa (at that time), was appointed as the first female captain of the Maritime Self-Defense Force, and became a hot topic.

At 2:42 pm on March 21, she shipped relief supplies to the Ishinomaki City Oshika General Branch.