Champion of Lost Causes is a lost 1925 American silent mystery film directed by Chester Bennett and starring Edmund Lowe, Barbara Bedford, and Walter McGrail.

A writer in search of a story visits a gambling club and witnesses a murder, which he attempts to solve.

[1][2] As described in a film magazine review,[3] Loring, an author, in getting material for a book, goes to a gambling den.

Several attempts are made on his life by the gang but fail.

The gambler proves to be Beatrice’s villainous fiancee, and when he confesses the murder Loring wins the young woman.