Paszek began her grass-court season at the Aegon Trophy. As the top seed, Paszek was defeated in the first round by Alison Riske. Seeded twelfth at the Aegon Classic, Paszek lost in the first round to Anne Keothavong. Paszek's final grass-court warm-up tournament before Wimbledon was the Aegon International. She advanced to her first WTA final since 2010 after wins over Marina Erakovic, eighth seed Daniela Hantuchová, Tsvetana Pironkova, and fourth seed and defending champion Marion Bartoli. In the final, Paszek upset fifth seed Angelique Kerber to win her third WTA title. Paszek was 3–5 down in the final set and saved five championship points. Ranked thirty-seven at the Wimbledon Championships, Paszek upset former world No. 1 and seventh seed Caroline Wozniacki in the first round. This match lasted 3 hours and 12 minutes. In the second round, she beat Alizé Cornet. Then, she defeated Yanina Wickmayer in the third round and twenty-first seed Roberta Vinci in the fourth round to reach the quarterfinals for the second year in a row. Paszek lost in her quarterfinal match for the second successive year to second seed Victoria Azarenka.