Arthur Howard McCollum[1] (August 4, 1898 – April 1, 1976) was an American Naval Officer as well as a key member of the Intelligence agency in the Southwest Pacific.

[4] He was serving as an assistant naval attaché in Tokyo in 1930[1] when Edwin T. Layton, Joseph J. Rochefort and Ethelbert Watts Jr. were there for similar training.

Despite the fact that he served on a wide variety of ships with the US Navy, he is most noted for his work in intelligence.

Commander he authored what is called the McCollum memo outlining his assessment of German and Japanese threats to U.S. security.

[4] McCollum, a key figure to the Office of Naval Intelligence, was the chief commander of the Far East section of ONI.