Otto Karl Seeck (2 February 1850 – 29 June 1921) was a German classical historian who is perhaps best known for his work on the decline of the ancient world.
Отто Зеек (; 2 февраля 1850, Рига — 29 июня 1921, Мюнстер) — немецкий историк, известный своими трудами по истории поздней античности.