LSD (disambiguation)

LSD is an initialism for lysergic acid diethylamide, a psychedelic drug.

The initialism may also refer to:

Science and technology

Language for Systems Development, a system programming language developed at Brown University
Laser Schlieren Deflectometry, a physical method for temperature measurement
Lean software development, a collection of principles to improve efficiency in IT projects
Least significant digit
Limit state design, a design methodology used in structural engineering
Limited slip differential, a type of automobile differential
Line sharing device or modem sharing device
Linear slot diffuser, a control device in a HVAC engineering diffuser
Log-spectral distance or log-spectral distortion
Longshore drift, a geological process by which sediments move along a beach shore
Low self-discharge NiMH battery, a type of rechargeable battery
Low Speed Diesel, a diesel engine that has rated speed less than 120 RPM
Low sulfur diesel, a diesel standard that preceded ultra-low sulfur diesel
Lumpy skin disease, a disease caused by a virus, which infects mainly cattle and buffalos
Lysosomal storage disease, a class of disorders caused by inborn errors of metabolism

"LSD" (Pretty Things song), 1966 B-side
"LSD", song by Hawkwind from Electric Tepee
"LSD" (ASAP Rocky song), stylized "L$D"; abbreviation for "Love, Sex, Dreams", 2015 song by A$AP Rocky
"Lucy in the Sky with Diamonds", a 1967 Beatles song sometimes thought to allude to LSD
"Lake Shore Drive" (song)

League of Social Democrats, a political party in Hong Kong
League for Spiritual Discovery, a spiritual organization founded by Timothy Leary
Local service district, a unit of municipal government in the Canadian provinces of Newfoundland and Labrador (NL) and of New Brunswick (NB).
Louisiana School for the Deaf, a school in Baton Rouge for the deaf and hard-of-hearing

Lake Shore Drive, a road in Chicago, U.S. Route 41
Karolina Dean, also known as Lucy in the Sky with Diamonds or L.S.D., a fictional character in the Marvel Comics series, Runaways
LSD: Dream Emulator, a 1998 Japanese video game
£sd (abbreviation of librae, solidi, denarii or "pounds, shillings and pence"), a pre-decimal currency of the UK and elsewhere
Spike Dudley (born 1970) or Little Spike Dudley (Matt Hyson), American professional wrestler
Long slow distance, a form of aerobic endurance training in running and cycling
Legal subdivision, a unit of land according to the Dominion Land Survey of Western Canada