Rondel (from Old French, the diminutive of roont "round", meaning "small circle") may refer to:
- Rondel (dagger) or roundel, type of medieval dagger
- Rondel (armour), a circular piece of steel, as part of an armour harness, that normally protects a vulnerable point
- Rondel (gaming)
- Rondel (poem), short poem of 14 lines
- Rondel enclosure, type of prehistoric enclosure found in Continental Europe
- Rondel Racing, a British racing team that competed in the Formula 2 series between 1971 and 1973