Dayton O’Brien (born October 29, 1983, in Memphis, Tennessee) is an American soccer player, currently without a club.
O’Brien graduated from high school in the spring of 2002 and entered the University of Memphis that fall.
On January 20, 2006, the Columbus Crew of Major League Soccer selected O’Brien in the third round (thirty-third overall) in the 2004 MLS SuperDraft.
[4] The Crew released O’Brien at the end of the 2006 season and on February 1, 2007, he signed with the Atlanta Silverbacks of the USL First Division.
In July 2007, The Philadelphia KiXX of the Major Indoor Soccer League selected O’Brien in the second round of the 2007 Supplemental Player Draft.