VSD

VSD may refer to:

.vsd, a file extension for Microsoft Visio diagrams
VSD (French magazine) (Vendredi Samedi Dimanche; i.e. "Friday Saturday Sunday"), a French weekly news magazine
Vaccine Safety Datalink, a Centers for Disease Control database containing vaccination and health records of over 7 million Americans
Variable speed drive, or adjustable-speed drive, is a specific type of a variable-frequency drive
Visible-surface determination, also known as hidden-surface determination
Video Single Disc, a video disc format based on laserdisc that only was popular in Japan and the rest of Asia
Voluntary Service Detachment, an Australian civil organization during World War II
State Security Department of Lithuania, a Lithuanian intelligence agency
Ventilation shutdown, a means of killing livestock

Medicine

Ventricular septal defect, a defect in the ventricular septum of the heart
Virtually safe dose, a concept in regulatory toxicology, applied to carcinogens with no threshold of effects

Vallivue School District, a school district in Idaho, United States
Vancouver Public Schools, a school district in Vancouver, Washington, United States
Vancouver School District, a school district in Vancouver, British Columbia, Canada
Vicksburg-Warren School District, a school district based in Vicksburg, Mississippi, United States