John Joseph Scanlan (May 24, 1906 – January 31, 1997) was an American Prelate of the Roman Catholic Church.

Scanlan was ordained by Bishop John Francis Norton for the Archdiocese of San Francisco on June 22, 1930, in Dublin.

[1] After his ordination, Scanlan served in pastoral positions at parishes in Oakland, Berkeley and San Jose.

He directed the Archdiocesan Council of Catholic Men and taught religion in high school.

[1] On March 6, 1968, Pope Paul VI appointed Scanlan as bishop of the Diocese of Honolulu.