HNLMS Nautilus (A853) is a diving support vessel of the Royal Netherlands Navy.

[2][3][1] Nautilus was laid down on 15 March 1992 at Scheepswerf Visser in Den Helder (now part of the Damen Group) as the third of four new diving support vessel.

She was launched later that year on 10 June 1992 and commissioned on 18 September.

[3][1][2] During a refit in 2008, Nautilus received a 10.5-metre (34 ft) extension in the mid-section and a new bow thruster among other things.

[2] It is expected that Nautilus will reach the end of her lifecycle in 2026/27.