The Institute for Research in Fundamental Sciences (IPM) (Persian: پژوهشگاه دانشهای بنیادی‎) (previously Institute for Studies in Theoretical Physics and Mathematics) is an advanced public research institute in Tehran, Iran. IPM is directed by Mohammad Javad Larijani, its original founder. The institute was the first Iranian organization to connect to the Internet. It is the domain name registry of .ir domain names.

• http://en.wikipedia.org/wiki/Institute for Research in Fundamental Sciences