Nealon

Nealon is a surname of Irish origin. The name is an Anglicisation of the Gaelic Ó Nialláin meaning "descendant of Niallán". The personal name Niallán is from a diminutive of the personal name Niall.
Notable people with the name include:

Aubrey Nealon, Canadian film and television director, producer and writer
Donie Nealon, Irish hurler
Jim Nealon, American professional baseball player
Kevin Nealon, American comedy actor
Ted Nealon, Irish politician; TD for Sligo-Leitrim; government minister
William Joseph Nealon Jr., American judge