The title of Earl of Suffolk has been created several times in the Peerage of England, most recently in 1603 for Thomas Howard, 1st Baron Howard of Walden. Several times, it has also been a Dukedom.
Earls of Suffolk, First Creation (1337)
Earls of Suffolk, Second Creation (1385)
Marquesses of Suffolk (1444)
Dukes of Suffolk, First Creation (1448)
Dukedom of Suffolk, Second Creation (1514)
Dukes of Suffolk, Third Creation (1551)
Earls of Suffolk, Third Creation (1603)