- Causatum (Death Black-USA)
- Calusari (Hardcore-Japan)
- Causam (Atmospheric Black-Switzerland)
- Caustic (Death Doom-Denmark)
- Casuist (Black Metal-USA)
- Cavusum (Black Metal-USA)
- Caesarum (Death Grind-France)
- Chastain (Heavy Metal-USA)
- Cascania (Atmospheric Gothic-Slovakia)
- Claustra (Black Metal-France)