Insu may refer to: İnsu, village in Yenişehir District, Turkey Insu-dong, neighbourhood of Gangbuk-gu, Seoul, South Korea In-soo (Korean name), Korean given name Queen Insu (1437-1504)
INSU may refer to: Insituform, British provider of trenchless technologies for gravity and pressure pipelines Institut national des sciences de l'univers (National Institute for Earth Sciences and Astronomy) of the French Centre national de la recherche scientifique