LLH may refer to
- Hospitals
- Life-Line Hospital, a hospital in Damak of Jhapa, Nepal
- LLH Hospital, one of the hospitals in the United Arab Emirates
- Schools
- Las Lomas High School, a school in Walnut Creek, California
- Los Lunas High School, a school in Valencia County, New Mexico
- Lycée La Liberté Héliopolis, a school in Cairo, Egypt
- Other meanings
- Holin LLH family, a group of transporters in bacteria
- Landsforeningen for lesbiske, homofile, bifile og transpersoner, the former name of the National Association for Lesbians, Gays, Bisexuals and Transgender People, a Norwegian organization
- La Lima Airport, an airport serving the town of La Lima in Cortés Department, Honduras, with the IATA airport code LLH