Um Aing-ran (; born March 20, 1936) is a South Korean actress. She has starred in about 190 films, and gained a popularity with the image of "a cheerful female college student" in the 1960s. Her marriage with Shin Seong-il, a colleague actor and big star of the time, attracted national attention. Since then she had been retired from the film industry, but returned as a TV show guest and host in the 1990s. The couple have three children.
Um was born in Seoul to a father who was a saxophonist and her mother, No Jae-shin, who was a prominent stage and film actress. She attended Sookmyung Women's University, where she studied English Literature.
Um made her film debut in 1956 in The Tragedy of King Dan Jong, directed by Jeon Chang-keun. She gained significant critical attention for her supporting role in Kim Ki-young's 1960 film, The Housemaid.
By the early 1960s, she had become a household name, starring in family dramas and romantic comedies such as A Romantic Papa (1960) and A Coachman (1961). Her career reached its peak with the 1964 hit The Barefooted Young, which solidified her status as the era's leading "youth star."
Following her marriage in 1964, she largely retired from acting, but she successfully re-emerged in the 1990s as a popular television personality and talk show host.