The Sirius Dog Sled Patrol (), known informally as "Siriuspatruljen" (the Sirius Patrol) and formerly known as "North-East Greenland Sledge Patrol" and "Resolute Dog Sled Patrol", is an elite Danish naval unit. It conducts long-range reconnaissance patrolling, and enforces Danish sovereignty in the Arctic wilderness of northern and eastern Greenland, an area that includes the Northeast Greenland National Park, which is the largest national park in the world. Patrolling is usually done in pairs and using dog sleds with about a dozen dogs, sometimes for four months and often without additional human contact.