John Henry Dimond (December 28, 1918 – June 1985) was an American jurist who served as a justice of the Supreme Court of Alaska from August 7, 1959, to November 30, 1971.

[1] He was one of Alaska's inaugural justices, serving along with Buell Nesbett and Walter Hodge on the court's first ever bench.

[2] Born in Valdez, Alaska, he was the only son of Anthony Dimond, and was briefly in private practice with his father prior to his death.

Dimond was seriously burned in a boating accident, while helping the construction of the Shrine of St. Therese in Juneau.

His law clerks included future Alaska Chief Justice Walter L. Carpeneti.