Hin or HIN may refer to:

People Cornelis Hin (1867–1944), A Dutch Olympic sailor Frans Hin (1906–1968), A Dutch Olympic sailor Johan Hin (1899–1957), A Dutch Olympic sailor

Science and technology Hin recombinase, a protein Hin, an ancient Egyptian unit of volume; see hekat Hin, a Biblical and Talmudic unit of measurement

Transportation High injury network Hindley railway station, in England Hinton station (West Virginia), an Amtrak station Sacheon Airport, in South Korea Hull number, or hull identification number

Other uses hin, the ISO 639-2 and 639-3 code for the language Hindi Hot Import Nights, automobile shows HIN (Healthcare Identification Number), US identifier HIN (Holder Identification Number), a unique number that identifies a CHESS sponsored shareholder

See also Hinn, a surname