Look up Ⓚ in Wiktionary, the free dictionary.
Circle-k, Ⓚ, or variant, may refer to:
- A "k" enclosed in a circle, see enclosed alphanumerics
- OK Kosher Certification, a "k" in a circle, found in kosher food packaging
- Kosher certification agency symbol, a mark on foods indicating kosher status from a certification agency
- Kashrut food practice emblem
- Kosher certification agency symbol, a mark on foods indicating kosher status from a certification agency
- Circle K, a convenience store chain
- Circle K Sunkus, a chain of convenience stores in Japan
- Circle K International, a service organization
- Kiwanis, a service club whose logo has a K enclosed in a circle