Penn Deivam is a 1970 Indian Tamil-language drama film, directed by M. A. Thirumugam and produced by Sandow M. M. A. Chinnappa Thevar. The film stars Jaishankar, Padmini, Lakshmi, R. Muthuraman and Major Sundarrajan. The film had musical score by V. Kumar.

A boy, Muthu, by mistake loses a one-gram ring, the only gold their family possesses and goes on a mission along with his sister Pachayammal take the help of their neighbor Chittu, decide to earn some money to make up for a lost gold ring and replace it before his family returns home.

Raji is forced into prostitution to support her brother's education after their parents' death. She falls in love with Babu, who faces social ridicule after their affair becomes public.

The Story revolves around a poor girl living with widowed mother and siblings. Poverty and the family situation gets her mother to prostitute herself for the welfare of the family. Director Bhagyaraj, treats this subject from the perspective of the girl who sees the wrong of her mother; but in the later teases the thought of right and wrong with the viewers considering the situation in which the mother gets into that. Bhagyaraj, himself plays the neighbour who first falls in love with the girl, later to realize that she is already in a relationship with another.

The film tells the story of a Hindu man who adopts a Muslim child and allows her to follow Muslim traditions.

A young man turns into a vigilante to fight injustice after his loved ones are killed.

Soudamini's husband has been paralysed and rendered impotent. Living with her old husband she likes the servant, Chandrasekharan. And She eventually marries him but later discovers that he has had relationship with many ladies and he aimed only at her wealth.

Ashamed of his bad behaviour towards his family, Chellappan decides to set things straight. However, he gets the shock of his life after learning that his wife is in a relationship with another man.