Who was first called “Pooh-Bah”? July 25, 2020January 22, 2012 by Pamela Landy The Lord High Everything in W. S. Gilbert and Arthur Sullivan’s operetta The Mikado (1885) was first called “Pooh-Bah”. Related Answers What are the five tallest buildings in New York City? Who was the lyricist and who was the composer for the Gilbert and Sullivan operettas? What does the A.A. in A. A. Milne stand for? What is the head of the British Secret Service called? What was the name of the high school in “Room 222” (ABC, 1969-74)? Who called the novel a “comic-epic poem in prose”?