The Society for Industrial and Applied Mathematics (SIAM) has three prizes named after George Pólya: the George Pólya Prize for Mathematical Exposition, established in 2013; the George Pólya Prize in Applied Combinatorics, established in 1969, and first awarded in 1971; and the George Pólya Prize in Mathematics, established in 1992, to complement the exposition and applied combinatorics prizes.
Frank Harary and William T. Tutte donated money to establish the original 1969 prize in combinatorics. Currently, funding for the three SIAM prizes is provided by the estate of Stella Pólya, the wife of George Pólya.