Nordstrandischmoor (Danish: Nordstrand Mor or Nordstrandmose, North Frisian: Lätj Möör; also known locally as Lüttmoor) is a Hallig (undyked islet) off the North Frisian coast in Germany and lies within the Schleswig-Holstein Wadden Sea National Park.

Administratively, Nordstrandischmoor belongs to the municipality of Nordstrand and is one of its parishes.

Its link with the mainland is the Lüttmoorsiel-Nordstrandischmoor island railway a construction railway with a rail gauge of 600 mm, which runs to the mainland at Beltringharder Koog in the municipality of Reußenköge.

At low tide the Hallig may also be reached on foot over the mudflats.

The four wharfs, from east to west are: Media related to Nordstrandischmoor at Wikimedia Commons