Mark H. Tuohey III is an American attorney best known for representing corporations and white collar clients. In February 2015, he was appointed by Muriel Bowser as director of the Mayor of Washington D.C.'s Office of Legal Counsel 
Tuohey received a J.D. from Fordham University Law School in 1973  and B.A. from St. Bonaventure University in 1969. He has been called one of Washington's "go-to" white collar defense attorneys.
In 1994, Tuohey joined the legal team of Ken Starr in the investigation of the Whitewater controversy, leaving his position as a partner at the law firm Reed Smith. Tuohey served as Starr's deputy counsel.
In 2006, Touhey represented former Ohio Republican Congressman Bob Ney, who was convicted of conspiracy in charges related to the Jack Abramoff Indian lobbying scandal. In a Federal Elections Commission filing showing expenses through the end of June 2006, Ney reported that he had not paid any legal fees since January 5 from campaign funds. Tuohey said Ney "needs money for his campaign and that's a priority right now. He intends to pay. He'll pay his fees, I have no doubt about that."  Ney's withdrawal from his race meant that he could use his remaining campaign funds, almost half a million dollars, to pay for his legal defense.
Pershing Park Arrests
Tuohey represented Metropolitan Police Department chief Charles H. Ramsey after Ramsey was accused of a mass arrest of IMF protesters in Pershing Park in 2002. The case generated at least $1.53 million in fees for Vinson & Elkins. Tuohey assured the courts that Ramsey would comply with judges orders but was unable to produce key evidence. Local media expressed outrage over the cost of the lawyer fees.
Jeanne Clarke Harris
In 2013, Tuohey represented Jeanne Clarke Harris, a public relations consultant who admitted in federal court to participating in the shadow campaign for Mayor Vincent Gray. Harris funneled financier Jeff Thompson's money through companies she owned.
Campaign for Attorney General
Tuohey announced his candidacy for the position of Attorney General of the District of Columbia in June 2014. Tuohey said that he was encouraged to run by individuals who want an Attorney General in the vein of incumbent Irvin B. Nathan, but withheld details, saying "I better not name names, but you'd know them all." In July, Tuohey dropped out of the race to endorse lawyer Karl Racine 
- Jeff Jeffrey (May 26, 2010). "Mark Tuohey Leaves Vinson & Elkins for Brown Rudnick, Cites Retirement Policy". The Legal Times. Retrieved 2014-06-18.
- Debonis, Mike (July 17, 2006). "Mark Tuohey, sports-loving defense lawyer, joins D.C. attorney general race". Washington Post. Retrieved 2014-06-18.
- "Mark Tuohey Becomes First Director of Mayor's Office of Legal Counsel". DC Bar. February 4, 2014. Retrieved 2015-04-13.
- "Mark Tuohey '73 Honored at FLAA Annual Luncheon". 2012 Fordham University School of Law. Archived from the original on 2016-03-05. Retrieved 2014-06-18.
- "Brown Rudnick LLP". The Legal 500 Rankings. Retrieved 2014-06-18.[permanent dead link]
- Stephen Labaton (September 13, 1994). "Mark Tuohey Leaves Vinson & Elkins for Brown Rudnick, Cites Retirement Policy". The New York Times. Retrieved 2014-06-18.
- Hammer, David (July 17, 2006). "Ohio congressman's legal payments on hold". Associated Press. Retrieved August 11, 2017.
- "Editorial: Ney Bails Out". Toledo Blade. August 10, 2006. Retrieved 2006-09-25.
- Jason Cherkis (January 17, 2003). "Boss Hogtie". Washington City Paper. Retrieved 2014-06-18.
- Jason Cherkis (Aug 17, 2010). "Pershing Park Case: Charles Ramsey Enters The Evidence Hall of Fame". Washington City Paper. Retrieved 2014-06-18.
- Jason Cherkis (Mar 4, 2011). "Defending Pershing Park Cost D.C. Millions". Washington City Paper. Retrieved 2014-06-18.
- Ann E. Marimow, Mike Debonis, and Nikita Stewart (August 11, 2013). "More D.C. campaigns allegedly received secret funding from Thompson". Washington Post. Retrieved 2014-06-18.
- Will Sommer (July 10, 2014). "Two More Candidates Enter Attorney General Race". Washington City Paper. Retrieved 2014-07-11.