- Language: Éy7á7juuthem (Comox)
- Alternate names: Comox, Mainland Comox, Sliammon, Comox-Sliammon, Çatlotq, Comox Cluster, Comux
- Language code: coo
- Language family: Salish, Central Salish (SIL classification)
- Number of speakers: 47
- Vulnerability: Endangered
Island Comox dialect has no remaining L1 speakers.
Island Comox and Mainland Comox dialects are recognized, the latter divided into three varieties associated respectively with the Homalco, Klahoose, and Sliammon Bands.