Horace Mann (1796–1859) - A famous education reformer, after whom schools and an insurance company have been named.

Horace Mann School - A private K-12 college preparatory school in New York City, New York founded in 1887

Horace Mann Elementary School in Oak Park, Illinois

Horace Mann School Beverly Hills, a K-8 school in Beverly Hills, California

Mann Arts and Science Magnet Middle School - middle school Little Rock, Arkansas

Sir Horatio Mann aka Sir Horace Mann was an 18th century MP and cricket patron; he was also noted for his correspondence with Horace Walpole