Arctic Umiaq Line A/S (AUL) or Arctic Umiaq is a passenger and freight shipping line in Greenland. Its name derives from the Kalaallisut word for the traditional Inuit passenger boat, the umiak, distinguished from the kayak, used for hunting. The sea connection provided by Arctic Umiaq provides supplies and communication to the entirety of western and southwestern Greenland. It is a wholly owned subsidiary of the Royal Arctic Line.

Royal Arctic Line A/S (RAL) or Royal Arctic is a seaborne freight company in Greenland, wholly owned by the Government of Greenland. It was formed in 1993, and is headquartered in Nuuk.