Arthur William Wallander, Sr. (February 3, 1892 - November 3, 1980) was New York City Police Commissioner from 1945 to 1949.

[1] He was the only Police Commissioner to be retained by an incoming Mayor of New York City.

[2] He was born on February 3, 1892, in New York City to Eva Wallander of Sweden.

[1] O'Dwyer had been trained by Wallander at the New York City Police Academy.

[2] He died on November 3, 1980, at the Putnam-Weaver Nursing Home in Greenwich, Connecticut.