Kensey Johns Jr. (December 10, 1791 – March 28, 1857) was an American lawyer and politician from Delaware.

Growing up, he pursued classical studies and graduated from Princeton College in 1810.

His wife was Maria Johns and his mother was Nancy Ann Van Dyke Johns, the daughter of former Delaware President Nicholas Van Dyke.

He is said to have been "painstaking and laborious to a degree in his careful examination of questions, but was also notably prompt in making his decisions."

He not only laboriously, but conscientiously, sought to adjudge every case thus submitted, but also to draw upon therefrom well defined principles and rules of equity."