Kanesuke Hara, the botanical author abbreviation of Japanese mycologist Kanesuke Hara
Hara (fish), a fish genus in the order Siluriformes
Hara (given name)
Hara (surname)
Hara (tanden) (腹), a Japanese technical term used in medicine and martial arts referring to a specific place on or the whole of the lower abdomen
Avicennia marina, a species of mangrove known as the hara tree in southern Iran
Hawai'i Academy of Recording Arts
Hazard Analysis and Risk Assessment, a methodology for determining the Automotive Safety Integrity Level as part of the quality procedure for making automotive components, defined in the ISO 26262 standard
Hyperbolic absolute risk aversion, a term in economics