John Brinsley Sheridan (January 22, 1870 – April 14, 1930) was an Irish-born American sportswriter.

In addition, he wrote with authority about American football, boxing and golf, among other sports.

While on the committee he became a whistleblower about some dishonest and illegal activities in the department, and decided to submit his resignation.

He soon suffered a nervous breakdown because of the affair and underwent medical care in sanitarium, but never recovered.

He was found hanging in his room at Alexian Brothers Hospital by a bathrobe cord.