HDMS Diana is the first of six vessels in the Diana-class built to patrol in the Danish territorial waters.

Diana, like all her sister ships, was built in Faaborg yard.

[1] The ship was built to replace the aging Barsø class, which had become obsolete.

[3] Diana carries a water-jet propelled RHIB which is placed on a slide aft and can be hoisted and taken in almost any weather.

[4] The ships are designed to perform tasks such as monitoring and maritime policing, peacekeeping, search and rescue including preparedness for decompression sickness, environmental (pollution control) and acute explosive ordnance disposal, including the clearance of gas and ammunition.