Glyndon is a city in Clay County, Minnesota, United States. The population was 1,394 as of the 2010 Census.
According to the United States Census Bureau, the city has a total area of 1.5 square miles (3.9 km²), all of it land. The city was named after Howard Glyndon, the pseudonym of Laura Redden Searing.
U.S. Route 10 serves as a main route in the city.