Terry (Terrence) O'Brien was previously the President of Metropolitan Water Reclamation District of Greater Chicago. He has served on the Metropolitan Water Reclamation District (MWRD) Board for more than 24 years. He currently works for The O'Brien Network, LLC.
O'Brien is a Chicago resident who lives in the northwest side neighborhood of Edgebrook with his wife and three children. He is an active community member and participates in a number of professional and charitable organizations.
2009-2010 Campaign for Cook County Board President
O'Brien was defeated in his run for Cook County Board President in the February 2, 2010 Democratic Primary Election. His opponents included Cook County Circuit Court Clerk Dorothy Brown; incumbent Cook County Board President Todd Stroger; and the winner, Toni Preckwinkle, a Chicago Alderman.