Gregorius Sickinger

File:Untertorbrücke 1600 Sickinger.jpg, from 1600 map]]

Gregorius Sickinger (1558–1631) was a Swiss painter, draughtsman, and engraver.

Sickinger was born in Solothurn. He had 5 brothers and sisters, and was re-married after the death of his first wife. Sickinger worked primarily with woodcuts often used in book illustrations. He died penniless in 1631.{{cite web|url=http://www.answers.com/topic/gregorius-sickinger|title=Brief Biography Gregorius Sickinger|access-date=2010-02-05}}

There is a Gregor Sickinger street in Fribourg in his honour.