Mariana Duque Mariño was the defending champion, but she lost to Han Xinyun in the first round.
7th seed Lourdes Domínguez Lino defeated Mathilde Johansson 2–6, 6–3, 6–2 in the final.
Lourdes Domínguez Lino was the defending champion, but lost in the second round to Mariana Duque-Mariño.
Lara Arruabarrena Vecino won the title, defeating Alexandra Panova in the final with the score of 6–2, 7–5.
All seeded players lost in the first or second round.
Anastasia Pavlyuchenkova is the defending champion, but decided to participate at the Dubai Tennis Championships instead.
Polona Hercog successfully defended her title after defeating Mathilde Johansson in the final 0–6, 6–4, 7–5.
Lourdes Domínguez Lino and María José Martínez Sánchez were the defending champions but Martínez Sánchez did not participate on account of her getting married on July 14.
Domínguez Lino played alongside Anabel Medina Garrigues, but they withdrew from the first round due to a thigh muscle strain from Domínguez Lino.
Catalina Castaño and Mariana Duque Mariño won the final 4–6, 7–5, [10–5] against Eva Hrdinová and Mervana Jugić-Salkić.
Karin Knapp and Mandy Minella were the defending champions but Knapp chose not to participate. Minella played with Elina Svitolina, but they lost in the first round to Estrella Cabeza Candela and Laura Pous Tió.
Sara Errani and Roberta Vinci were the defending champions but decided not to participate.
Lourdes Domínguez Lino and Arantxa Parra Santonja won the title, defeating Catalina Castaño and Mariana Duque Mariño in the final, 6–4, 7–6(7–1).
Mariana Duque was the defending champion, but decided not to participate.
Jelena Janković was the defending champion, but lost to Caroline Garcia in the final, 3–6, 4–6.
Yuliya Beygelzimer and Olga Savchuk were the defending champions, however Beygelzimer chose not to participate and Savchuk chose to compete at the 2014 BRD Bucharest Open instead.
Mariana Duque was the defending champion, having won the previous event in 2011, but lost in the semifinals to Johanna Larsson.
Andrea Gámiz and Adriana Pérez were the defending champions, having won the previous event in 2011, but both players chose not to participate.
Adriana Pérez was the defending champion, having won the event in 2013, but chose not to participate.
Indy de Vroome was the defending champion, having won the event in 2013, however she chose to participate in Makinohara instead.
The tournament in Asunción was a new addition to the ITF Women's Circuit.
Verónica Cepede Royg was the defending champion, but lost in the final to Teliana Pereira, 7–6(8–6), 6–1.
Irina-Camelia Begu and María Irigoyen were the defending champions, however Begu chose to compete at the 2015 Family Circle Cup instead. Irigoyen partnered up with Paula Ormaechea but lost in the first round to Tadeja Majerič and Conny Perrin.
Lourdes Domínguez Lino and Beatriz García Vidagany were the defending champions, but García Vidagany chose not to participate. Domínguez Lino partnered Mariana Duque but lost in the first round.
Mariana Duque was the defending champion, but chose to participate in Beijing instead.
Serena Williams was the three-time defending champion, but lost in the fourth round to Svetlana Kuznetsova.
Lourdes Domínguez Lino 
Mariana Duque 
Elise Mertens 
Arantxa Rus 
