Rafał Leszczyński (October 1579 – 29 March 1636) was a Polish–Lithuanian noble and Imperial count. He was the castellan of Kalisz starting in 1618, he became the voivode of Bełz in 1620, and the starost of Hrubieszów in 1633. He was extensively educated in law, humanities, theology, military science, natural sciences, and even studied under Galileo. He also traveled over much of Europe.