Princess Uliana Olshanska (Polish: Julianna Holszańska, Lithuanian: Julijona Alšėniškė or Julijona Vytautienė; d. 1448) was a noblewoman from the Olshanski family, the second wife of Vytautas, Grand Duke of Lithuania. They had no issue. Very little is known about Uliana's life. Her first husband was Ivan of Karachev. German chronicle of Johann von Posilge and Polish historian Jan Długosz asserted that Ivan was murdered so that widowed Uliana could marry Vytautas. Most likely she was an Eastern Orthodox who converted to Catholicism in order to marry Vytautas.