T. K. Sarangapani (28 July 1925 – 2 February 2011) was a Malayalam screenwriter and playwright.

He has written the screenplay and dialogues for thirty six films, most of them for Kunchacko's Udaya Studios.

[1] He joined the Udaya Studios, founded by Kunchacko, in 1960 and scripted majority of their notable works during the 1960s and 1970s.

His debut work Umma, based on a novel by Moidu Padiyath, was the first Muslim social film in Malayalam.

Sarangapani who was suffering from a prolonged illness died on 2 February 2011 at a private hospital in Cherthala.