The 2018 Engie Open de Seine-et-Marne was a professional tennis tournament played on indoor hard courts.

It was the sixth edition of the tournament and was part of the 2018 ITF Women's Circuit.

It took place in Croissy-Beaubourg, France, on 26 March–1 April 2018.

The following players received a wildcard into the singles main draw: The following player received entry using a junior exempt: The following players received entry from the qualifying draw: The following players received entry as Lucky Losers: