CHR or chr may refer to:

Organisations

• Canadians for Health Research, a national not-for-profit organisation

• Centre for Human Rights, an organisation promoting human rights in Africa

• Christ Church Secondary School, a government-aided school in Woodlands, Singapore

• Commission on Human Rights (Philippines), an independent constitutional office

Science and technology

• .CHR, a stroke file format in the Borland Graphics Interface

• Chromosome, a DNA molecule with genetic material

• Constraint Handling Rules, a computer programming language

Other uses

• chr, the code for Cherokee language in ISO 639-2 and ISO 639-3

• CHR, the Index Herbariorum code for the Allan Herbarium

• Canadian Historical Review, a scholarly journal

• Châteauroux-Centre "Marcel Dassault" Airport, a French airport (IATA code: CHR)

• Chatham House Rule, whereby information from a discussion can be used but the source not named

• Christmas Island, ITU code

• Contemporary hit radio, a radio format playing current popular music

• Toyota C-HR, a subcompact crossover SUV