John Weston Allen[4] (April 19, 1872[4] – January 1, 1942[5]) was an American politician who served as a member of the Massachusetts House of Representatives from 1915 to 1918[3] and as Massachusetts Attorney General from 1920 to 1923.

As Attorney General, Allen was aggressive in his pursuit of white collar criminals.

[6] During his tenure, Allen prosecuted Thomas W. Lawson, L. C. Van Riper,[6] and Charles Ponzi.

[4] Instead of seeking reelection, Allen ran for Governor of Massachusetts in 1922 but lost the Republican primary election to incumbent Channing H. Cox.

This article about a member of the Massachusetts House of Representatives is a stub.