ROP
- Movement for Reconstruction of Poland
- Palau
- Panama
- Paraguay
- Peru
- Philippines
- Poland
- Raster Operations Pipeline
- Rate of penetration
- Regional Occupational Program
- Reorder point
- Retinopathy of prematurity
- Return-oriented programming
- Right occiput posterior
- Ring-opening polymerization
- Role-oriented programming
- Rop (name)
- Rop protein
- Rop rock shelter
- Rops (disambiguation)
- Rota International Airport
- Royal Oman Police