Mark Aubrey Tennyson, 5th Baron Tennyson  (28 March 1920 – 3 July 2006) was a British peer. He was the second son of Lionel Tennyson, 3rd Baron Tennyson and Hon.
Lord Mark Aubrey Tennyson, 5th Baron Tennyson (28 March 1920 – 3 July 2006), a prominent British aristocrat, was the second child of Lionel Tennyson, 3rd Baron Tennyson, and his wife.