Harry Herbert Peterson (April 12, 1890 – January 23, 1985) was an American lawyer, judge and politician.

[citation needed] He was elected Ramsey County Attorney to serve 1923–1924 and subsequently served as the Minnesota Attorney General during the Farmer-Labor administration of Floyd B. Olson, 1933–1936.

During the Great Depression, Peterson drafted and subsequently defended the constitutionality of the Minnesota Mortgage Moratorium Act, a signature Depression-era reform which sustained the principle that States could adopt moratoria on bank foreclosures.

[citation needed] Upon retirement, Peterson was active in the formation of the Midwestern School of Law where he served as Dean prior to its reorganization as the Hamline University School of Law.

Peterson donated his personal law library to the new school and served on its faculty, later dying of a stroke in 1985.