Otto van Veen (1556-1629), also known by his Latinized name Otto Venius or Octavius Vaenius, was a painter, draughtsman, and humanist active primarily in Antwerp and Brussels in the late sixteenth and early seventeenth century. He is known for running a large studio in Antwerp, producing several emblem books, and for being, from 1594 or 1595 until 1598, Peter Paul Rubens’s teacher.