Karthik Jayaram is an Indian actor in the Kannada film industry.

He is known for his work in the Colors Kannada television soap opera Ashwini Nakshatra, in which he played actor Jay "JK" Krishna.

In 2015, he was signed to play the role of Ravana in the mythological Hindi television series Siya Ke Ram that would be aired on Star Plus.

He entered the reality show Bigg Boss Kannada 5.

Nominated - SIIMA Award for Best Actor in a Supporting Role (Male) - Kannada