- ABOP stands for American Board of Ophthalmology (also seen as ABO; est. 1916)
- ABOP stands for American Board of Orofacial Pain (est. 1994)
- ABOP stands for Antifreeze, Batteries, Oil and Paint (household hazardous waste facilities)
- ABOP stands for Algemene Bevrijdings-en Ontwikkeling Partij (General Liberation and Development Party, Suriname)
ABOP