Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
HAMLETT
As described in historical dictionaries
Patronymica Britannica (1860)
HAMLETT. Hamlet or Ilamleth appears to have been an old Scandinavian personal name, whether the hero of Shakspeare's tragedy was a real character or only an imaginary one. If this derivation is incorrect, we can hardlj' fall back ujjon hamlet, a small village, for the origin of the surname. Grose says that it is a provincialism for a high constable.
Surname type: Diminutive
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English