John J. Mescall, A.S.C. was an American cinematographer. He photographed such silent films as Ernst Lubitsch's The Student Prince in Old Heidelberg (1927), but he is best known for his work in the 1930s at Universal Pictures, where he often worked on the films of James Whale. Mescall was famous for his elaborate, some might say grandiose, effective camera movements, in which the camera would often track completely across or around a set, or even one performer. He did not always use these kinds of camera movements, but his most famous films all have them.

The Student Prince in Old Heidelberg, also known as The Student Prince and Old Heidelberg, is a 1927 Metro-Goldwyn-Mayer silent drama film based on the 1901 play Old Heidelberg by Wilhelm Meyer-Förster. It was directed by Ernst Lubitsch, and stars Ramon Novarro and Norma Shearer.