O'Dea is a surname of Irish origin. The original Irish language surname from which it derives is .
The following is a list of notable people with the surname O'Dea.
Arts
Addison O'Dea – American documentary filmmaker Danny O'Dea – British actor Darrell O'Dea – Canadian musician and recording engineer Denis O'Dea – Irish actor Jimmy O'Dea – Irish actor and comedian Judith O'Dea – American film actress Mark O'Dea – British television presenter Mick O'Dea – Irish painter Stephanie O'Dea – American food and lifestyle writer
Clergy
Cornelius O'Dea – Irish bishop Edward John O'Dea – American bishop Thomas O'Dea – Irish bishop
Military
Jane Skiles O'Dea – American navy officer John O'Dea – American Civil War soldier
Politics
Ernest Charles O'Dea – Australian politician and union official Fabian O'Dea – Lieutenant Governor of Newfoundland, Canada John R. O'Dea – Canadian businessman and politician Jonathan O'Dea – Australian politician Louis O'Dea – Irish politician Michael O'Dea – Irish politician Michael O'Dea – Australian politician Richard W. O'Dea - American politician Tom O'Dea – American attorney and politician Willie O'Dea – Irish politician
Sport
Ben O'Dea – New Zealand beach volleyball player Bob O'Dea – New Zealand rugby player Darren O'Dea – Irish football manager and player Donnacha O'Dea – Irish Olympic swimmer and professional poker player Ebony O'Dea – Australian rules football player Jim O'Dea – Australian rules football player Ken O'Dea – American baseball player Kevin O'Dea – American football coach Larry O'Dea – Australian wrestler and promoter Luke O'Dea – Irish rugby player Luke O'Dea – Australian football player Pat O'Dea – Australian and American football player and coach Paul O'Dea – American basketball player Steve O'Dea – Australian rugby player Terry O'Dea – Australian darts player Tom O'Dea – Irish football player Trent O'Dea – Australian volleyball player
Other
Ann O'Dea – Irish journalist and businesswoman Brian O'Dea – Canadian smuggler and author Patrick O'Dea – New Zealand civil servant