Paul Lange (12 October 1857 – 2 December 1919) was a German musician, teacher, orchestra and choir leader living and working in Istanbul.

Lange became a successful piano teacher and subsequently also formed his private conservatory, which however had to declare bankruptcy after two years.

Finally, during his visit to Constantinople in 1898, Kaiser Wilhelm II, who had already appointed him a "Kaiserlicher Musikdirektor" in 1894, became aware of Lange and helped him gain a position as head of a naval military orchestra of the Ottoman Navy.

As a member of the Ottoman court, Lange was allowed to stay in Istanbul by the Allied Military Administration when all other Germans and Austrians were deported from the city.

Paul Lange was a close friend of fellow German lecturer Dr Friedrich Schrader, also a faculty member at Robert College in the 1890s.