Tiberius Claudius Caesar Augustus Germanicus (previously Tiberius Claudius Drusus Nero Germanicus), the fourth Roman Emperor; reigned from January 24, 41 to his death in 54.

List of Roman Emperors, as several Emperors had "Claudius" in their full name

Claudius Smith (1736–1779), a notorious British Loyalist guerrilla leader in the American Revolution.

Claudius II Gothicus, a Roman Emperor who reigned from 268 to August 270, during the crisis of the third century.

King Claudius, Hamlet's uncle in Shakespeare's play Hamlet.

Claudius (gens), a noble family of Ancient Rome.

Gelawdewos of Ethiopia (known as Claudius in English), a mid-16th century Emperor of Ethiopia.

Saint Claudius, the name of several Christian saints.