Gardar is an unincorporated community in Pembina County, in the U.S. state of North Dakota.
As of 2016, its population is 90.
Gardar was founded ca. 1878, and was originally built up chiefly by Icelanders. A post office was established at Gardar in 1881, and remained in operation until 1984. The population was 90 in 1940.