Yolanda Oreamuno Unger (8 April 1916 – 8 July 1956) was a Costa Rican writer.
Her most acclaimed novel is La Ruta de su Evasión (1948).
Her 40 years of life were markedly divided into two phases: the first 20 years, filled with youth, beauty and happiness, contrasted sharply with the following years of tragedy, loneliness and sickness.