App
- .app (disambiguation)
- Acute-phase protein
- Adjusted Peak Performance
- Aggrupation of Parties for Prosperity
- Alberta Provincial Police
- All People's Party (disambiguation)
- Alliance for the Homeland
- American Principles Project
- Amyloid-beta precursor protein
- Animal Protection Party
- App (file format)
- App (film)
- App (surname)
- Appleby railway station
- Appleton, Wisconsin
- Application Portability Profile
- Application software
- Apps (film)
- Apps (surname)
- Archive of Public Protests
- Asbury Park Press
- Asia-Pacific Partnership on Clean Development and Climate
- Assessing Pupils' Progress
- Associated Press of Pakistan
- Association of Pickleball Players
- Association of Professional Piercers
- Atactic polypropylene
- Atom Publishing Protocol
- Australian Protectionist Party
- Authorised push payment fraud
- Justice Defenders
- Mobile app
- People's Progressive Alliance (Mauritania)
- The Alan Parsons Project
- The App
- Web application