Hazelgreen is an unincorporated community in eastern Laclede County, Missouri, United States. It lies along historic U.S. Route 66, now an outer road of Interstate 44. The town is split by I-44, one mile west of the I-44 - Missouri Route 133 junction in adjacent Pulaski County. The Gasconade River is just north and west of the site.
- U.S. Geological Survey Geographic Names Information System: Hazelgreen, Missouri
- Missouri Atlas & Gazetteer, DeLorme, 1998, First edition, p. 45, ISBN 0-89933-224-2
- "Post Offices". Jim Forte Postal History. Retrieved 24 October 2016.
- "Laclede County Place Names, 1928–1945 (archived)". The State Historical Society of Missouri. Retrieved 24 October 2016.
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