Julius Moser (8 November 1863 – 4 July 1929) was a German entomologist who specialised in beetles.
He worked on world fauna maintaining a very large personal collection much of which was purchased from insect dealers.
Moser who lived in Berlin left his collection to the Museum für Naturkunde in that city.
He described many new species mostly in the flower beetle group Cetoniinae.
These are large colourful beetles popular with collectors.