Andrew Joseph Majda (30 January 1949 – 12 March 2021) was an American mathematician and the Morse Professor of Arts and Sciences at the Courant Institute of Mathematical Sciences of New York University.

[1] He was known for his theoretical contributions to partial differential equations as well as his applied contributions to diverse areas including shock waves, combustion, incompressible flow, vortex dynamics, and atmospheric sciences.

Born in East Chicago, Indiana, Majda received a B.S.

He began his scientific career as an instructor at the Courant Institute of Mathematical Sciences from 1973 to 1975.

At Courant Institute, Majda was instrumental in setting up the "Center for Atmosphere-Ocean Science" which aims to promote cross-disciplinary research with modern applied mathematics in climate modelling and prediction.