The 2015 Engie Open Nantes Atlantique was a professional tennis tournament played on indoor hard courts.

It was the thirteenth edition of the tournament and part of the 2015 ITF Women's Circuit, offering a total of $50,000 in prize money.

It took place in Nantes, France, on 2–8 November 2015.

The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: The following player received entry by a lucky loser spot: The following player received entry by a junior exempt: