John Miller Turpin Finney (June 20, 1863 – May 30, 1942) was an American surgeon and academic who also served as a brigadier general during World War I.

After interning at Massachusetts General Hospital, Finney joined the Johns Hopkins University in 1889[3] as a member of its surgical staff.

He worked alongside William Stewart Halsted, became a professor at the university, and started the school's dispensary.

During World War I, he commanded the Johns-Hopkins Medical Unit, Base Hospital Number Eighteen while at the rank of colonel.

Upon his promotion to brigadier general on October 1, 1918, he became the American Expeditionary Forces' chief consultant in surgery.