Wenner-Gren Center is a tower and building complex in Vasastan, Stockholm, Sweden.

The Center consists of three buildings named Helicon, Pylon and Tetragon.

Helicon contains housing for visiting scientists to institutions in the Stockholm area, and this part is owned by one of the Wenner-Gren Foundations.

[1] The rest of the complex consists of commercial rental space, although some of it is traditionally used by scientific organisations, such as research-granting bodies.

The Center is named after the businessman Axel Wenner-Gren, who donated funds to finance its construction, after Nobel Prize winner Hugo Theorell had lobbied for having the housing need of visiting scientists addressed.