HSM
# HSM

HSM or H.S.M. may refer to:

## Entertainment

* High School Musical (disambiguation)

## Organisations

* Harakat al-Shabaab Mujahedeen or Al-Shabaab, a Somali insurgent group
* Hollandsche IJzeren Spoorweg-Maatschappij, a former Netherlands railway
* Holy Spirit Movement, Uganda
* HSM (company), an American company (previously Hickory Springs)

## Science and technology

* Hardware security module, a physical computing device
* Hepatosplenomegaly, enlargement of the liver and the spleen
* Hierarchical Storage Manager, an IBM program Product for MVS and a component of Data Facility Storage Management Subsystem/MVS
* Hierarchical storage management, in data storage
* Hierarchical state machine, in computer science
* Hyper Sonic Motor, Sigma ultrasonic motor lens focusing technology

## Other uses

* Historic Sites and Monuments in Antarctica
* Horsham Airport, Australia, by IATA code
* Humanitarian Service Medal, a U.S. military award
