Timothy O'Neill
Timothy or Tim O'Neill or O'Neal may refer to:
- Timothy O'Neill (Daria), a character in the U.S. TV series Daria
- Timothy O'Neill (soccer), American soccer midfielder
- Tim O'Neill (Canadian football), Canadian football offensive lineman in the Canadian Football League
- Tim O'Neill (seaQuest), character from the 1990s television series seaQuest DSV
- Timothy O'Neal (golfer), American golfer
- Timothy O'Neill (camoufleur), American camouflage expert, designer of MARPAT
- Tim O'Neal (politician), member of the Pennsylvania House of Representatives