Harrison Ludington (July 30, 1812 – June 17, 1891) was an American businessman, Republican politician, and Wisconsin pioneer.

[2] He became a partner with his uncle and Harvey Birchard in a merchandise business known as Ludington & Company, which operated out of a warehouse previously owned by Solomon Juneau.

[5] During his third term as Mayor, he was chosen as the Republican nominee for Governor of Wisconsin, challenging incumbent Democrat William Robert Taylor.

Under his administration the infamous Potter law was repealed, which was supposed to drastically increase government intervention in the railroad business.

[2] Ludington declined renomination for the position of governor in 1879 due to pressure from younger members of the Republican party.

[7] Following his decision not to pursue renomination for governorship, Ludington resigned from public affairs and devoted himself to conducting business.

Harrison's paternal grandfather was Colonel Henry Ludington,[10] who commanded the 7th Regiment of Dutchess County Militia during the American Revolutionary War.