Rex Rienits (17 April 1909 – 1971) was an Australian writer of radio, films, plays and TV. He was a journalist before becoming one of the leading radio writers in Australia. He moved to England in 1949 and worked for a number of years there. He later returned to Australia and worked on early local TV drama. According to Richard Lane Rienits "was the most affable and generous of men; warm in his friendships, generous with his time and in his efforts to help those still with the ladder to scale. Above all, he was utterly dedicated to the propagation of Australian history, art and playwriting."