Paul Klein

Paul Klein may refer to:


 * Paul Klein (missionary) (1652–1717), Czech Jesuit missionary in the Philippines, pharmacist and Cavite College rector, often referred to as Pablo Clain, or Paulus or Pavel Klein
 * Paul L. Klein (1929–98), developer of pay-per-view TV channels and creator of the least objectionable program theory
 * Paul Klein (chess player) (1915–1992), German–Ecuadorian chess player
 * Paul Klein (art dealer) (1946–2020), American art activist from Chicago
 * Paul Klein, a musical theatre composer who collaborated with the lyricist Fred Ebb
 * Paul Klein, a Professional French horn player from Glasgow who plays with the Ulster Orchestra as the 1st Horn