| Date: | August 16–24 |
| Edition: | 45th |
| Location: | New Haven, Connecticut, United States |
| Surface: | Hard / outdoor |
| Category: | WTA Premier |
| Champs: |  Simona Halep |
| Champd: |  Sania Mirza /  Zheng Jie |
| After Name: | Connecticut Open |
The 2013 New Haven Open at Yale was a women's tennis tournament played on outdoor hard courts. It was the 45th edition of the New Haven Open at Yale, and part of the Premier Series of the 2013 WTA Tour. It took place at the Cullman-Heyman Tennis Center in New Haven, Connecticut, United States, from August 16 through August 24. It was the last event on the 2013 US Open Series before the 2013 US Open.
| Country | Player | Ranking* | Seed | |
|---|---|---|---|---|
 Italy | Sara Errani | 6 | 1 | |
| 8 | 2 | |||
 Czech Republic | Petra Kvitová | 9 | 3 | |
| 10 | 4 | |||
| Italy | Roberta Vinci | 12 | 5 | |
| 17 | 6 | |||
| 18 | 7 | |||
 Slovakia | Dominika Cibulková | 19 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following players received entry from a lucky loser spot:
Marion Bartoli (retirement from tennis) Magdaléna Rybáriková (lower-back injury)
Urszula Radwańska (viral illness) Sorana Cîrstea (abdominal injury)
Ayumi Morita (low-back injury) Peng Shuai (dizziness)| Country | Player | Country | Player | Rank* | Seed | |
|---|---|---|---|---|---|---|
| Hsieh Su-wei | Peng Shuai | 19 | 1 | |||
| Anabel Medina Garrigues | Katarina Srebotnik | 31 | 2 | |||
| Sania Mirza | Zheng Jie | 39 | 3 | |||
| Liezel Huber | Nuria Llagostera Vives | 39 | 4 |
The following pair received a wildcard into the doubles main draw:
See main article: 2013 New Haven Open at Yale – Singles. Simona Halep defeated Petra Kvitová, 6–2, 6–2.
See main article: 2013 New Haven Open at Yale – Doubles. Sania Mirza / Zheng Jie defeated 
Anabel Medina Garrigues / Katarina Srebotnik, 6–3, 6–4
