Loach may refer to:
Fishes of the superfamily Cobitoidea, bottom-dwelling freshwater fishes with several barbels near the mouth, found in Eurasia and northwestern Africa, related to minnows Algae eaters, fishes of the family Gyrinocheilidae, are sometimes referred to as sucking loaches Ken Loach (born 1936), English film director Mikaela Loach, British climate justice activist Scott Loach (born 1988), English footballer Light Observation Helicopter (LOH, pronounced as loach), U.S. Army helicopter program "Loach", colloquial name of the Hughes OH-6 Cayuse military helicopter
ja:ローチ