Fetsund forms the center of the municipality Fet in the county of Akershus, Norway. The name comes from the local geography, Fet means "where water meets grass". As for the -sund part, it simply means 'strait, inlet'. Accordingly, Fetsund is located at the strait of Glomma, Norway's largest river, just before it enters Øyeren nature reservation, and this is the place the logging industry in years past pulled the logs out of the water for transport to steam sawmills. Fetsund has a church with an altarpiece dating from the 17th century.