David Elbaz (born March 18, 1966) is a French observational astrophysicist specializing in galaxy formation and evolution.

He led the Cosmology and Evolution of Galaxies laboratory for approximately a decade and has been the managing editor of the journal Astronomy & Astrophysics since 2018.

[5] He has been teaching the Galaxy Evolution[6] course in the Masters program entitled Recherche Astronomie, Astrophysique et Ingénierie Spatiale de Paris since 2005.

In 2001, using new data from the Infrared Space Observatory, Elbaz and Ranga Chary produced a suite of galaxy spectral energy distribution templates.

[12] Using observations from ALMA, his group also discovered[13] a dominant population of optically invisible massive galaxies in the early universe.