2018 Porsche Tennis Grand Prix – Doubles

Raquel Atawo and Jeļena Ostapenko were the defending champions, but chose not to participate together this year. Atawo successfully defended the title alongside Anna-Lena Grönefeld, defeating Nicole Melichar and Květa Peschke in the final, 6–4, 6–7(5–7), [10–5]. Ostapenko teamed up with Olga Savchuk, but lost in the quarterfinals to Atawo and Grönefeld.

Seeds
• # Andreja Klepač / 🇪🇸 María José Martínez Sánchez (semifinals)

• # 🇷🇺 Alla Kudryavtseva / 🇨🇿 Andrea Sestini Hlaváčková (first round)

• # Kiki Bertens /  Demi Schuurs (quarterfinals)

• # 🇺🇸 Raquel Atawo / 🇩🇪 Anna-Lena Grönefeld (champions)