Otto Keller was a German classical philologist who specialized in Horace. He also wrote a landmark two volume work on animals in antiquity. He was often called as "Horace Keller" to differentiate him from his father Adelbert von Keller who was also a philologist.
- Occupation
- classical philologist, secondary school teacher, university teacher
- Citizenship
- Germany
- Born
- May 28, 1838
- Died
- February 16, 1927
