The Astro Tower (French: Tour Astro; Dutch: Astrotoren) is a skyscraper in Brussels, Belgium.

It is located on the north-eastern corner of the Small Ring (Brussels' inner ring road) in the municipality of Saint-Josse-ten-Noode, just north of the Madou Plaza Tower.

The Astro Tower is 107 metres (351 ft) tall, making it one of the tallest buildings in Belgium.

The financial firm Fortis Group leased the entirety of the building from 2005 to 2011.

[1] The owner, HPG Belgium NV, sold the Astro Tower to the Spanish investor Luresa in February 2008.