Viscounts Norwich (1952)
- Alfred Duff Cooper, 1st Viscount Norwich (1890–1954)
- John Julius Cooper, 2nd Viscount Norwich (b. 1929)
The heir apparent is the present holder's son Hon. Jason Charles Duff Bede Cooper (b. 1959)
There are no other heirs to the viscountcy.
Read more about this topic: Viscount Norwich