Sijthoff

Sijthoff may refer to:

People

 * Albertus Willem Sijthoff (1829–1913), a prominent Dutch publisher
 * Albert Georg Sijthoff (1853–1927), son of Albertus Willem Sijthoff and publisher of the Haagsche Courant
 * Bob Sijthoff, descendant of Albertus Willem Sijthoff who sued Wikimedia in the Netherlands in 2008

Other

 * 3201 Sijthoff, an asteroid named after Albert Georg Sijthoff
 * Luitingh-Sijthoff, a Dutch publishing company passed down through the Sijthoff family
 * Sijthoff Planetarium, a planetarium in the Hague that burned down in 1975