• Born year: 1370
  • Born in: Haarlem
  • Death year: 1440
  • Death in: Haarlem
Laurens Janszoon Coster

Laurens Janszoon Coster (ca. 1370, Haarlem, the Netherlands – ca. 1440), or Laurens Jansz Koster, is the name of a purported inventor of a printing press from Haarlem. He discovered printing simultaneously with Johannes Gutenberg and is regarded in the Netherlands as having invented printing first.