SOH or soh may refer to: Facilities and structures Sydney Opera House, Sydney, New South Wales, Australia South Horizons station of the Hong Kong MTR, station code SOH Groups, organizations, companies Hispaniolan Ornithological Society () of the Dominican Republic and Haiti Sound of Hope, international Chinese-language radio network established by practitioners of the Falun Gong new religious movement Southern Ohio Aviation (ICAO airline code: SOH), see List of airline codes (S) School of Health, University of Guam, Guam Southwest Senior High School, San Diego, California, USA Other uses Soh (surname), an alternative spelling of various Chinese, Japanese, and Korean surnames Sine = Opposite ÷ Hypotenuse, a mnemonic used to teach trigonometry Stable ocean hypothesis of ecology Start of Header (or Start of Heading: ), an ISO C0 control code State of health of batteries Sense of humour, the tendency of experiences to provoke laughter and provide amusement SOH-States of Humanity, a Gesamtkunstwerk created by multi media artist Alex Vermeulen Vanguard: Saga of Heroes, an MMORPG videogame See also SOHS (disambiguation)