Neßmersiel is an East Frisian village and seaside resort on the Wadden Sea coast in Lower Saxony, Germany.

Most coastal tours of the north German sea coast begin at Neßmersiel.

Each year 10–12 million migratory birds visit the nearby Lower Saxon Wadden Sea National Park.

By 1700, the harbor had to be moved closer to the sea when the original location was filled with silt from the dikes.

[citation needed] A Bavarian sex comedy was filmed near Neßmersiel in 1973 ("The East Frisian Report").