Ghanashyam Nayak (12 May 1944 – 3 October 2021) was an Indian drama, film and television actor. He had appeared in a number of tele serials, drama as well as films. His last memorable role was of Natwarlal Prabhashankar Udhaiwala a.k.a. Nattu Kaka in Taarak Mehta Ka Ooltah Chashmah.

Early life
Nayak was born on 12 May 1944 in Undhai village in Mehsana district. He was son of Ranglal Nayak who was associated with Gujarati drama as music director.

Career
He started as child artist in drama and Hindi films and gradually worked towards comedy and character roles. Bhavai was one of his popular act. He played a Bhavai actor in Hum Dil De Chuke Sanam with Aishwarya Rai Bachchan. He had appeared in approximately 100 Gujarati and Hindi films and around 350 Hindi television series. He also acted in more than 100 Gujarati stage plays. He gave playback in more than 12 Gujarati films with maestros like Asha Bhosle & Mahendra Kapoor. He also dubbed more than 350 Gujarati films.