The Weierstrass Institute for Applied Analysis and Stochastics (WIAS), is a part of the Forschungsverbund Berlin e.V.

[2] Based in Berlin’s district Mitte, the institute's research activities involve applied and pure mathematics.

Since February 2011, the International Mathematical Union (IMU) Secretariat has been located in Berlin at WIAS.

The institute is named after the Berlin mathematician Karl Weierstraß (1815–1897), who was well known for his profound processing of analysis.

The research activity is oriented on specific application situations and is confirmed by cooperations with scientific institutions and the economy.