APD is an acronym that may refer to:
APD-40 or APD 40 refers to a road composed of the U.S. Route 64 Bypass (US 64 Byp.) and a section of Tennessee State Route 60 (SR 60) which forms a beltway around the business district of Cleveland, Tennessee.
Apdex (Application Performance Index) is an open standard developed by an alliance of companies. It defines a standard method for reporting and comparing the performance of software applications in computing.
Carlos "Apdaly" Lopez (born December 2, 1994) is an off-road racing driver from Tecate, Baja California.
The apothecaries' system or Apothecaries' Weights and Measures is a historical system of mass and volume units that were used by physicians and apothecaries for medical recipes, and also sometimes by scientists.
Enochian angels are entities described in the Enochian magic system, introduced in the sixteenth century by John Dee (1527–1608) and Edward Kelley (1555–1597).
The American Parliamentary Debate Association (APDA) is the oldest intercollegiate parliamentary debating association in the United States, and one of two in the nation overall, the other being the National Parliamentary Debate Association (NPDA).
The Albuquerque Police Department is the largest municipal police department in New Mexico. it is in Bernalillo County and has jurisdiction within the city limits.
APDD Pty Ltd is a construction company based in Melbourne, Victoria Australia. They provide a range of services including project design, construction management and construction.
Armour-piercing fin-stabilized discarding-sabot (APFSDS) is a type of kinetic energy penetrator ammunition used to attack modern vehicle armour.