Herb Breau PC (born December 5, 1944) is a Canadian businessman and former politician.
He served as chairman of the Parliamentary Task Forces on North-South Relations and on Fiscal Federalism in Canada, chairman of the Parliamentary Association of Canada-United States from 1977 to 1981, and a member of the Trilateral Commission from 1981 to 1984.
His ministerial career ended just over two months later as a result of the election that defeated the Turner government.
Breau served on the board of governors of the International Development Research Centre (IDRC) in the 1990s as an appointee of the federal government.
Breau currently serves on the board of directors of the Pearson Centre for Progressive Policy.