Stanisław Kostka S.J. was a Polish novice of the Society of Jesus. He is venerated in the Catholic Church as Saint Stanislaus Kostka.
He was born at Rostkowo, Przasnysz County, Poland, on 28 October 1550, and died at Rome during the night of 14–15 August 1568. He entered the Society of Jesus in Rome on his 17th birthday, and is said to have foretold his death a few days before it occurred.