Philibert Jacques Melotte (January 29, 1880 – March 30, 1961) was a British astronomer whose parents immigrated from Belgium.

In 1908 he discovered a moon of Jupiter, today known as Pasiphaë. It was simply designated "Jupiter VIII" and was not given its present name until 1975.

The asteroid 676 Melitta , the only one he discovered, is sort of named after him. Its name is in fact the Attic form of the Greek Melissa, the bee, but its resemblance with the discoverer's name is not fortuitous.