Bilthoven is a village located in the Dutch province of Utrecht. It serves as a constituent part of the municipality of De Bilt.
The village features a railway station providing transportation connections to the cities of Utrecht, Amersfoort, and Baarn. Notable institutions situated in Bilthoven include the Netherlands National Institute for Public Health and the Environment (RIVM) and the Union Mundial pro Interlingua (UMI), an organization dedicated to the international promotion of Interlingua.