Calvin Cabell Tennis (born October 24, 1932) is an American prelate who was the Bishop of Delaware from 1986 to 1997.
He studied at the College of William & Mary from where he graduated with a Bachelor of Arts in 1954 and with a Juris Doctor, in 1956 after which he was admitted to the Virginia State Bar.
Later, Tennis studied at the Virginia Theological Seminary from where he graduated with a Master of Divinity in 1964.
In 1972 he became dean and rector of St Mark's Cathedral in Seattle.
[4] On June 14, 1986, he was elected Bishop of Delaware and was consecrated on November 8, 1986, by Arthur Heath Light of Southwestern Virginia in St Helena's Roman Catholic Church in Wilmington, Delaware.