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