John Ehrlichman, American lawyer and politician, 12th White House Counsel (born 1925)

John Daniel Ehrlichman was an American political aide who served as White House Counsel and Assistant to the President for Domestic Affairs under President Richard Nixon. Ehrlichman was an important influence on Nixon's domestic policy, coaching him on issues and enlisting his support for environmental initiatives.

The White House Counsel is a senior staff appointee of the president of the United States whose role is to advise the president on all legal issues concerning the president and their administration. The White House counsel also oversees the Office of White House Counsel, a team of lawyers and support staff who provide legal guidance for the president and the White House Office. At least when the White House Counsel is advising the president on legal matters pertaining to the duties or prerogatives of the president, this office is also called Counsel to the President. When initially created, it was named simply Special Counsel.