Johann Leonhard Rost (12 February 1688 – 22 March 1727) was a German astronomer and author from Nuremberg.
He wrote under the alias Meletaon.
The crater Rost on the Moon is named after him.
His brother Johannes Carolus Rost was a famous doctor from Nuremberg, he is mostly known to be the personal doctor of Anna Maria Franziska of Saxe-Lauenburg.
This article about a German astronomer is a stub.