Karan Kumar Johar (born Rahul Kumar Johar, 25 May 1972), often informally referred to as KJo, is an Indian film director, producer, screenwriter, costume designer, actor and television personality who works in Hindi films.
Son of producer Yash Johar, he made his directorial debut with the romantic comedy-drama Kuch Kuch Hota Hai (1998), which earned him the Filmfare Award for Best Director and the Filmfare Award for Best Screenplay. His next films, the ensemble family melodrama Kabhi Khushi Kabhie Gham... (2001) and the ensemble musical romantic drama Kabhi Alvida Naa Kehna (2006), were both very successful in the domestic and overseas market. His social drama My Name Is Khan (2010) earned him his second Filmfare Award for Best Director. The 2018 spy thriller Raazi won him Filmfare Award for Best Film. These, along with the several successful films he has produced under the Dharma Productions banner, have established him as one of the leading director-producers in Hindi cinema.
Johar has also ventured successfully into other avenues of the entertainment industry. He hosts a television talk show, Koffee with Karan, a dating show What the Love! and a radio show Calling Karan, and appeared as a judge on competition reality shows Jhalak Dikhhla Jaa, India's Got Talent, India's Next Superstars.
In 2020, he was conferred with the Padma Shri award, the fourth-highest civilian honour of India.