HNoMS Tyr was a mine control vessel used for underwater search and recovery by the Royal Norwegian Navy.

Tyr was built at Voldnes Skipsverft in 1981 and was used as an offshore standby-ship in the North Sea under the name MS Standby Master, yard number 31.

The Royal Norwegian Navy took her over in December 1993, and Tyr went through a comprehensive rebuilding and modernization program between 1994 and February 1995 at the Mjellem & Karlsen shipyard in Bergen.

Tyr was fitted with tactical systems, and was equipped with a Scorpio ROV.

[citation needed] In 2014, Tyr was put up for sale by the Norwegian Armed Forces, with an estimated price of 15-20 million kr.