The Dreikönigsgymnasium ("Tricoronatum", meaning "Three Kings School") is a regular public Gymnasium located in Cologne, Germany. Founded in 1450, it is the oldest school in Cologne and one of the oldest in Germany.
- Julius Echter von Mespelbrunn (1545–1617) was a Prince-Bishop of Würzburg
- Dietrich von Fürstenberg (1546–1618), Prince-Bishop of the Roman Catholic Diocese of Paderborn
- Johann Adam Schall von Bell (1592–1666), Jesuit missionary to China
- Maximilian Henry of Bavaria (1621-1688), Archbishop-Elector of Cologne
- Franz Egon of Fürstenberg (1626–1682), Imperial Count
- William Egon of Fürstenberg (1629–1704), prince of Fürstenberg-Heiligenberg
- Theodor Schwann (1810–1882), physiologist
- Adolph Kolping (1813–1865), Catholic priest
- Carl Schurz (1829–1906), German revolutionary, American statesman and reformer, and Union Army general
- Fritz Schramma (born 1947), Mayor of Cologne
- Peter Kohlgraf (born 1967), Bishop of Mainz
- Daniel Brühl (born 1978), Actor
- O'Connor, John T. (1978). Negotiator out of Season. Athens, GA: University of Georgia Press. p. 2. ISBN 0-8203-0436-0.
- Homepage of the Dreikönigsgymnasium Köln (in German)