Wil Tirion (19 February 1943 – 5 July 2024) was a Dutch uranographer (celestial cartographer).

His work, which included star charts and atlases, was widely distributed and renowned by astronomers.

[1][2] Originally a graphic designer, Tirion became a full-time celestial cartographer after the success of his first star atlas, Sky Atlas 2000.0, published in 1981.

[1] His second major work, Uranometria 2000.0, contained over 280,000 stars and 10,000 deep-sky objects across two volumes and was published by Willmann-Bell in 1987.

[1] Tirion's early work was largely done by hand, with computer-generated plots as references.