| Carl Willoch Ludvig Horn | |
| Birth Date: | 21 August 1841 |
| Birth Place: | Kristiansand, Norway |
| Nationality: | Norwegian |
| Occupation: | Educator, textbook writer and politician |
Carl Willoch Ludvig Horn (21 August 1841 - 13 August 1913) was a Norwegian educator, textbook writer and politician. He was born in Kristiansand.
He served as principal of the middle school in Hamar, was a member of various governmental commissions, and wrote textbooks in geography. He also served as mayor of Hamar.[1]