An Old-Fashioned Young Man is a 1917 American silent drama film directed by Lloyd Ingraham and starring Robert Harron and Colleen Moore.

[1][2] Frank Trent (Harron), a young man, goes into politics, but the people he works with are using dirty tricks to defeat Mrs. Burke, the candidate for mayor.

The story angers the chivalrous Frank, who is in love with Margaret, and decides to disprove it, travelling to find proof of her legitimate birth.

Frank finds the diary of a long dead doctor, which proves that Margaret's mother is not Mrs. Burke.

An Old-Fashioned Young Man was produced by D. W. Griffith's Fine Arts Company and distributed by Triangle Film Corporation.