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
• Victory Star Destroyer, a fictional class of ship in the Star Wars universe
• 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

Places

• 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