Cecil is a surname of Welsh origin.

The name was associated with Monmouthshire and derives from the Old Welsh personal name Seisyllt. The name may be related to that of the local Celtic tribe (Silures) and the successor kingdom (Essyllwg).

The spelling has been modified greatly as a result of folk etymological association with the Latin name C(a)ecilius, a derivative of caecus ("blind").

Notable people with the surname edit

Notable people with the surname include:

See also edit