(b. 1584, Amsterdam, d. 1635, Amsterdam)
Dutch painter and draughtsman. He travelled to Rome in 1608 and in 1611 married Meijnsje Simonsdr. Pynas, the sister of Jan and Jacob Pynas. Their son Mattheus Gansneb Tengnagel later made his name as a poet. Jan Tengnagel's only recorded pupil was Laurens Heinrich Hellewich. In 1618 Tengnagel was referred to as a famous painter in Theodore Rodenburgh's poem eulogizing the city of Amsterdam. Before 1619 he was an officer of the Guild of St Luke in Amsterdam, and later he held high office on Amsterdam's governing bodies.
He primarily painted biblical and other religious works.