| Date: | 30 March–5 April |
| Edition: | 3rd |
| Prize Money: | $50,000 |
| Surface: | Hard (indoor) |
| Location: | Croissy-Beaubourg, France |
| Venue: | Ligue de Seine-et-Marne |
| After Name: | Engie Open de Seine-et-Marne |
The 2015 Open GDF Suez Seine-et-Marne was a professional tennis tournament played on indoor hard courts. It was the third edition of the tournament which was part of the 2015 ITF Women's Circuit, offering a total of $50,000 in prize money. It took place in Croissy-Beaubourg, France, on 30 March – 5 April 2015.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Japan | Misaki Doi | 105 | 1 | |
 Poland | Magda Linette | 109 | 2 | |
 Belgium | An-Sophie Mestach | 114 | 3 | |
 Israel | Shahar Pe'er | 116 | 4 | |
| Richèl Hogenkamp | 126 | 5 | ||
| Japan | Misa Eguchi | 131 | 6 | |
 Czech Republic | Kristýna Plíšková | 138 | 7 | |
 Belarus | Olga Govortsova | 140 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
See main article: 2015 Open GDF Suez Seine-et-Marne – Singles.
Margarita Gasparyan def. 
Mathilde Johansson, 6–3, 6–4See main article: 2015 Open GDF Suez Seine-et-Marne – Doubles.
Jocelyn Rae / Anna Smith def. Julie Coin / Mathilde Johansson, 7–6(7–5), 7–6(7–2)