Robert W. (Bob) Mattson Jr. (born May 31, 1948) is an American lawyer who held elective political office in Minnesota, and is also involved in various business ventures in Florida, Colorado and Canada.

[1][2] His father was Minnesota Attorney General Robert W. Mattson Sr. Mattson was elected State Auditor at the age of 26, the second-youngest to attain statewide office in Minnesota; the distinction of being the youngest goes to Jim Lord, who was 25 when elected State Treasurer.

He is a graduate of Bloomington Kennedy High School in Bloomington, Minnesota, Harvard University in Cambridge, Massachusetts, and William Mitchell College of Law in Saint Paul.

His business ventures include Michelbobs Championship Ribs restaurants in Naples, Florida and Cochrane Air Service in Cochrane, Ontario, Canada.

[3] Mattson and his wife, Marge, are the parents of two daughters, Kimberly and Jennifer.