Georg Alexander Pick (10 August 1859 – 26 July 1942) was an Austrian-born mathematician. He was born in a Jewish family to Josefa Schleisinger and Adolf Josef Pick. He died in the Theresienstadt concentration camp. Today he is best known for Pick's theorem for determining the area of lattice polygons. He published it in an article in 1899; it was popularized when Hugo Dyonizy Steinhaus included it in the 1969 edition of .