ICSD
ICSD is the abbreviation for
- International Classification of Sleep Disorders , a medical classification system for sleep disorders
- International Central Securities Depository , which acts as a kind of securities depository for all other (national) securities depositaries
- Inorganic Crystal Structure Database , a crystal structure database for materials scientists, chemists and physicists
- International Committee of Sports for the Deaf , international sports association of the deaf, organizer of the Deaflympics .