Jean-Yves Le Gall (born 30 April 1959) is an engineering graduate from the École supérieure d'optique (1981) and holds a doctorate in engineering from the University of Paris-Sud (1983).

He began his career in 1981 as a researcher at the Astronomy Laboratory, French National Scientific Research Center, where he worked on the European scientific satellites project Hipparcos and ISO.

Le Gall was appointed as CNES Deputy Managing Director in 1996.

Since 2002 till April 2013 he worked as an Arianespace CEO, was succeeded by Stéphane Israël.

This French engineer or inventor biographical article is a stub.