C18
C18 stands for:
- Chrysler C18, a car model from 1938
- A radioactive isotope of carbon
- Combat 18, a neo-Nazi - terrorist organization in Great Britain
- Main road C18, a road in Namibia
- A particular type of chromatographic material, based on silica gel and octadecylsilanes
- An ECO code for the Winawer Variation of the French Defence, an opening in chess
- A character from the Dragon Ball Z universe
- Disambiguation
- Abbreviation