Th Institute of Applied Mathematics could refer to:
- The Keldysh Institute of Applied Mathematics in Moscow
- The Institute of Informatics and Applied Mathematics in Tirana, Albania
- The Institute for Pure and Applied Mathematics (IPAM), an American mathematics institute
- The Instituto de Investigaciones en Matemáticas Aplicadas y Sistemas (IIMAS, “Applied Mathematics and Systems Research Institute”) in Mexico City
- The Institute of Applied Mathematics at Heidelberg University
- The Instituto Nacional de Matemática Pura e Aplicada (“National Institute for Pure and Applied Mathematics”) in Brazil