JH

JH may refer to:

• Jh (digraph), in written language
• JH (hash function), in cryptography
• Japan Highway Public Corporation
• Jharkhand, India (ISO 3166: JH)
• Juvenile hormone
• Fuji Dream Airlines (since 2008, IATA code JH), a Japanese airline
• Harlequin Air (1997-2005, IATA code JH), a former Japanese airline
• Nordeste Linhas Aéreas Regionais (1976-1995, IATA code JH), a former Brazilian airline
• Template:JRLS, symbol for Yokohama Line railway service
• Jim Henson (1936-1990), American puppeteer best known for creating the Muppets