ICGV Ægir is an Offshore Patrol vessel of the Icelandic Coast Guard built by Aalborg Værft a/s, in Denmark. She is the first ship of the Ægir class and is the sistership of the slightly improved ICGV Týr. She participated in the two last Cod Wars. In 1990 the original 57mm cannon was replaced with the current Bofors 40 mm gun and a large crane was added in 1994. The flight deck was enlarged in 1997 and in 2005 she was refitted in Poland with a new bridge and improved electronics suite.