Hoagland

Hoagland may refer to:

• Richard C. Hoagland (born 1945): An American author and conspiracy theorist known for his advocacy of unorthodox ideas about NASA, space exploration, and alleged alien artifacts on the Moon and Mars. He is a proponent of the "Face on Mars" and other similar anomalies as evidence of extraterrestrial intelligence. His theories are generally considered pseudoscience and lack mainstream scientific support.

• Hoagland, Indiana: A small unincorporated community in Adams County, Indiana, United States.

• Hoagland Custom, LLC: A company that designs and sells custom-built guitars and basses.

• Hoagland (surname): A surname of possible Dutch or English origin. The etymology and frequency of the name are subjects of genealogical study. Notable individuals with this surname other than Richard C. Hoagland may exist. Further research is needed to ascertain the origins and historical prevalence of the name.

• Hoagland Laboratory: The former location of the Long Island Biological Association, which was a forerunner of Cold Spring Harbor Laboratory. It was located in Brooklyn, NY.