Koushik Sen is an Indian actor in film, television, OTT and theatre, based in Kolkata. He is the founder and director of the theatre group Swapnasandhani. He won the Bengal Film Journalists' Association Award for best supporting actor for his performance in the Mrinal Sen directed film Aamar Bhuvan. He was awarded Girish Purashkar 2023 by the Cultural Department of the Government of West Bengal for his extraordinary contributions to theatre. In 2024 he was awarded Telly Academy Best Actor Award for Godhuli Alap series.