Meaning The meaning of the name Dermot is 'freeman' or 'free from envy'. The name was first used in Irish mythology. Origin of Dermot Celtic , Irish +-100%Zoom level changed to 1 Popular Middle Names Michael Pronunciation 🔊 Listen Dermot DER-maht Similar Names Diarmad Joshua Dermod Jay Diarmaid Freemon Kermit Finnegan Kian Lanfranco Year by Year Popularity of Dermot