Norbert Wiener (November 26, 1894 – March 18, 1964) was an American mathematician and philosopher. He was a professor of mathematics at the Massachusetts Institute of Technology (MIT). A child prodigy, Wiener later became an early researcher in stochastic and mathematical noise processes, contributing work relevant to electronic engineering, electronic communication, and control systems.

The Norbert Wiener Center for Harmonic Analysis and Applications (NWC) is a division of the Mathematics Department in the University of Maryland College of Computer, Mathematical, and Natural Sciences devoted to research and education in pure and applied harmonic analysis. The center, named after acclaimed scientist Norbert Wiener was founded in 2004 and is based out of the Mathematics Building on the University of Maryland, College Park campus. It is supported by the University of Maryland, the National Science Foundation, and local industries with which it interacts.

The Norbert Wiener Award for Social and Professional Responsibility was established in 1987 in honor of Norbert Wiener to recognize contributions by computer professionals to socially responsible use of computers. It was awarded annually by CPSR, Computer Professionals for Social Responsibility, until that organization disbanded in 2013. The award is now managed by the IEEE Society for the Social Implications of Technology.

The Norbert Wiener Prize in Applied Mathematics is a $5000 prize awarded, every three years, for an outstanding contribution to "applied mathematics in the highest and broadest sense." It was endowed in 1967 in honor of Norbert Wiener by MIT's mathematics department and is provided jointly by the American Mathematical Society and Society for Industrial and Applied Mathematics.

Norbert is a Germanic given name, from nord "north" and berht "bright". Norbert is also occasionally found as a surname.