Karthikeyan (in short Karthikeya, Karthik, Kartik) is an Indian masculine given name derived from the Lord Kartikeya.
People
- D. R. Karthikeyan, an Indian Police Service Officer.
- G. Karthikeyan, an Indian politician and the speaker of the Kerala Legislative Assembly
- M. L. R. Karthikeyan, an Indian playback singer
- Murali Karthikeyan, an Indian chess Grandmaster
- Narain Karthikeyan, the first Formula One motor racing driver from India
- P. S. Karthikeyan, an Indian politician who was a member of the Kerala Legislative Assembly
- Sivakarthikeyan, an Indian film actor, television anchor, and stand-up comedian of Tamil Nadu
- Sujata R. Karthikeyan, an IAS officer and wife of V. K. Pandian