The 2007 J&S Cup was a Tier II event on the 2007 WTA Tour that ran from 30 April until 6 May 2007. It was held in Warsaw, Poland, and was the 12th year that the event was staged. Justine Henin won her second Warsaw title and third overall of the year after other victories in Dubai and Doha. The event was also Kim Clijsters' last professional tournament before taking a break from the sport to start a family. The Belgian lost in the second round to qualifier Julia Vakulenko, and just a few days after announced her retirement from professional tennis. She would eventually return to the sport in 2009 after giving birth to a daughter in 2008.

Entrants

Seeds

Other entrants

The following players received wildcards into the main draw: The following players received entry from the qualifying draw:

Finals

Singles

🇧🇪 Justine Henin defeated 🇺🇦 Alona Bondarenko, 6–1, 6–3

Doubles

🇷🇺 Vera Dushevina / 🇺🇦 Tatiana Perebiynis defeated 🇷🇺 Elena Likhovtseva / 🇷🇺 Elena Vesnina, 7–5, 3–6, [10–2]