Frank Archibald Rhea (September 26, 1887 – October 31, 1963) was bishop of the Episcopal Diocese of Idaho, serving from 1942 to 1968.

He attended Sewanee Military Academy and later graduated from St Stephen's College in 1912.

He was appointed as priest in charge of the missions in Sisseton, South Dakota and chaplain of the army camps in the west of Texas.

He transferred as rector of St Mark's Church in Beaumont, Texas in 1923, where he remained till 1928.

He was consecrated on April 29, 1942, by Arthur Moulton, Bishop of Utah, in St Michael's Cathedral in Boise, Idaho.