| Date: | August 20–26 |
| Edition: | 49th |
| Category: | WTA Premier |
| Draw: | 30S / 16D |
| Prize Money: | $695,900 |
| Surface: | Hard / outdoor |
| Location: | New Haven, United States |
| Champs: |  Daria Gavrilova |
| Champd: |  Gabriela Dabrowski /  Xu Yifan |
The 2017 Connecticut Open (also known as the 2017 Connecticut Open presented by United Technologies for sponsorship reasons) was a tennis tournament played on outdoor hard courts. It was the 49th edition of the Connecticut Open, and part of the Premier Series of the 2017 WTA Tour. It took place at the Cullman-Heyman Tennis Center in New Haven, Connecticut, United States, from August 20 through August 26. It was the last event of the 2017 US Open Series before the 2017 US Open.
| Event | Round of 16 | Round of 32 | width=85 | width=85 | width=85 | width=85 | ||||||||
| Singles[1] | 470 | 305 | 185 | 100 | 55 | 1 | 25 | 18 | 13 | 1 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubles | 1 |
| width=130 bgcolor=dfe2e9 | Event | width=80 bgcolor=lime | W | width=85 bgcolor=thistle | F | width=85 bgcolor=ffff00 | SF | width=85 bgcolor=ffebcd | QF | width=85 bgcolor=afeeee | Round of 16 | width=85 bgcolor=afeeee | Round of 32 | width=85 | Q3 | width=85 | Q2 | width=85 | Q1 |
| style=background:#f3f3f3 | Singles | $130,300 | $69,380 | $37,020 | $19,885 | $10,665 | $5,820 | $3,045 | $1,620 | $895 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| style=background:#f3f3f3 | Doubles | $40,650 | $21,700 | $11,865 | $6,035 | $3,270 |
| Country | Player | Rank* | Seed | |
|---|---|---|---|---|
 Poland | Agnieszka Radwańska | 10 | 1 | |
 Slovakia | Dominika Cibulková | 11 | 2 | |
 Czech Republic | 13 | 3 | ||
 France | Kristina Mladenovic | 14 | 4 | |
 Russian Federation | Elena Vesnina | 18 | 5 | |
| Russian Federation | Anastasia Pavlyuchenkova | 20 | 6 | |
| Czech Republic | Barbora Strýcová | 23 | 7 | |
| China | Peng Shuai | 25 | 8 |
The following players received wildcards into the singles main draw:
Eugenie Bouchard
Sloane StephensThe following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Alizé Cornet Sloane Stephens →replaced by Christina McHale Samantha Stosur →replaced by Kateřina Siniaková| Country | Player | Country | Player | Rank* | Seed | |
|---|---|---|---|---|---|---|
| Sania Mirza |  Romania | Monica Niculescu | 26 | 1 | ||
| Australia | Ashleigh Barty | Australia | Casey Dellacqua | 30 | 2 | |
| Anna-Lena Grönefeld | Czech Republic | Květa Peschke | 40 | 3 | ||
| Canada | Gabriela Dabrowski | China | Xu Yifan | 48 | 4 |
The following pair received a wildcard into the doubles main draw:
The following pair received entry as alternates:
See main article: 2017 Connecticut Open – Singles.
Daria Gavrilova defeated Dominika Cibulková, 4–6, 6–3, 6–4See main article: 2017 Connecticut Open – Doubles.
Gabriela Dabrowski / Xu Yifan defeated Ashleigh Barty / Casey Dellacqua, 3–6, 6–3, [10–8]
