Jamnadas Majethia (JD) (born 5 February 1969) is an Indian actor, director and producer. He is well known for his work in Gujarati and Hindi plays, dramas, serials & film. Having given successful shows like Sarabhai vs Sarabhai, and Khichdi, he is a very successful showmaker. On stage, he has been active in Gujarati theater for the last 20 years. He formed a company Hats Off Productions. While he is usually associated with comic roles, he is also known to portray supporting characters to a certain extent.

He was nominated in 2011 for Apsara Award for Best Actor in a Comic Role for his role as Himanshu Seth in Khichdi: The Movie. In 2013, Majethia launched his acting academy, HatsOff Actors Studios.

Personal life
Jamnadas is married to Nipa Majethia. They have two daughters; Kesar and Mishri. Kesar was the narrator in the movie, Khichdi. His second daughter Mishri worked in Khichdi as Chakki Parekh.