HCS
# HCS

HCS may refer to:

## Education

* Hackensack Christian School, in New Jersey, United States
* Hallett Cove School, in Adelaide, South Australia
* Hampshire Country School, in New Hampshire, United States
* Hampton Christian Schools, in Virginia, United States
* Hardin County Schools, in Kentucky, United States
* Harrisburg Christian School, in Pennsylvania, United States
* Hereford Cathedral School, in England
* Heritage Christian School (disambiguation)
* Heritage College Sydney, in New South Wales, Australia
* Highland Catholic School, in Minnesota, United States
* Hilltop Christian School, in North Carolina, United States
* Hinsdale Central School, in New York, United States
* Hooghly Collegiate School, in West Bengal, India
* Holland Christian Schools, in Michigan, United States
* Holy Cross School (disambiguation)
* Horry County Schools, in South Carolina, United States
* Hull Collegiate School, in England

## Biology and medicine

* Hajdu–Cheney syndrome
* High-content screening
* Human chorionic somatomammotropin
* Hydrocortisone

## Science and mathematics

* HCS clustering algorithm
* Heliospheric current sheet
* Hierarchical constraint satisfaction
* Hummocky cross-stratification

## Technology

* Hard-clad silica optical fiber
* Header check sequence
* Hierarchical cell structure (telecommunications)
* Hub-center steering

## Other uses

* Halifax Choral Society
* Halo Championship Series
* Harlem Children Society
* High Council of State (disambiguation)
* The Histochemical Society
* Hollywood Center Studios
* Honoris Crux Silver, a military decoration of South Africa
* Honourable Company's Service or Honourable Company's Ship, used to prefix the names of East India Company ships
* HUMINT Control System, an aspect of the Sensitive compartmented information protocol
* Hyderabad Civil Service, India
