HNLMS Thetis (A887) was a accommodation ship of the Royal Netherlands Navy.

[2] Thetis was built at the Koninklijke Maatschappij De Schelde (KMS) between 1984 and 1985.

[1] The Dutch government awarded KMS the order to build the ship because the company had at the time overcapacity and therefore needed orders to prevent layoffs.

[3] In 1990 Thetis was used to provide further training to 25 doctors from 13 different countries.

[2] At the same time the Royal Netherlands Navy also offered to train divers of the Dutch fire departments how to handle during underwater accidents.