Otto Kinkeldey (November 27, 1878 – September 19, 1966) was an American music librarian and musicologist.

[1] In a somewhat unusual step for an American at the time, he studied for his doctorate at a German university, the Royal Academic Institute for Church Music in Berlin, where he received his Ph.D. in 1909.

[1] In 1910, Kinkeldey was appointed Royal Prussian Professor at the University of Breslau[4] Returning to New York, he served in the United States Army during World War I.

[5] He became head of the New York Public Library's Music Division, serving in that capacity from 1915 to 1923.

He was elected the first president of the American Musicological Society in 1935, which honored him posthumously in creating the Otto Kinkeldey Award.