Hy or HY may refer to:
Science and technology Hy (programming language), a Lisp dialect for Python HY (satellite), a series of Chinese marine remote sensing satellites H-Y antigen, a male tissue specific antigen
Other uses HY (band), a Japanese band Hy (island), a pre-Christian and early Christian name for the Scottish island Iona Hy (name), a given name, nickname, or surname hy (company), South Korean food company Armenian language (ISO 639-1 language code: hy) Uzbekistan Airways (IATA code: HY), the national airline of Uzbekistan
See also
HY-80, a type of alloy steel HY-124798, a chemical compound HY Velorum, a binary star system Hy-V, a flight experiment research project HY1935 bayonet, a Chinese infantry weapon
HYS (disambiguation) HI (disambiguation) High (disambiguation)