John James McCook (1806–1865) was the patriarch of the Fighting McCooks, one of the most prolific families in United States Army history.
John James McCook may also refer to:
John James McCook (lawyer) (1845–1911), an American corporate attorney, business director, and soldier, serving as a Union Army officer during the American Civil War John James McCook (professor) (1843–1927), an American chaplain in the Union Army during the American Civil War, and reconstruction era lawyer, professor, and theologian.
See also
McCook (disambiguation) John McCook (born 1944), American television actor