APD

APD may refer to:

Medicine

• Acid peptic diseases
• Afferent pupillary defect
• Antimicrobial Peptide Database
• Antipsychotic drug
• Antisocial personality disorder
• Auditory processing disorder
• Autoimmune progesterone dermatitis
• Automated peritoneal dialysis
• Avoidant personality disorder
• Pamidronic acid

Police departments

• Airport Police Division, Singapore
• Akron Police Department, Ohio, United States
• Albuquerque Police Department, New Mexico, United States
• Amtrak Police Department, United States
• Anchorage Police Department, Alaska, United States
• Annapolis Police Department, Maryland, United States
• Antioch Police Department, California, United States
• Apopka Police Department, Florida, United States
• Arcadia Police Department, California, United States
• Atlanta Police Department, Georgia, United States
• Aurora Police Department, Colorado, United States
• Austin Police Department, Texas, United States

Transport

• Air Passenger Duty, an excise duty levied on passengers flying from UK airports
• Albany Port Railroad, United States
• APD-40, a highway in Tennessee, United States
• Appledore (Kent) railway station, United Kingdom

Other uses

• Air Products & Chemicals, an American industrial gas and chemical company
• Alliance for Democracy (Dominican Republic) (), a Dominican Republic political party
• Alpha Phi Delta, an American college fraternity
• American political development
• Apple Accessory Products Division, now The Keyboard Company
• Avalanche photodiode
• High-speed transport, in the United States Navy
• Peace Through Law Association (, a French pacifist organisation
• Sudanese Arabic, a variety of the Arabic language