2018 Porsche Tennis Grand Prix
Date	22–29 April
Edition	41st
Category	Premier
Draw	28S / 16D
Prize money	$816,000
Surface	Clay (indoor)
Location	Stuttgart, Germany
Venue	Porsche-Arena
Champions
Singles
Karolína Plíšková
Doubles
Raquel Atawo / Anna-Lena Grönefeld
← 2017 · Porsche Tennis Grand Prix · 2019 →

The 2018 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor clay courts. It was the 41st edition of the Porsche Tennis Grand Prix, and part of the Premier tournaments of the 2018 WTA Tour. It took place at the Porsche Arena in Stuttgart, Germany, from 23 to 29 April 2018.

Points and prize money

Point distribution

Prize money

_{* per team}

Singles main draw entrants

Seeds

Country		Rank1	Seed
ROU	Simona Halep	1	1
ESP	Garbiñe Muguruza	3	2
UKR	Elina Svitolina	4	3
LAT	Jeļena Ostapenko	5	4
CZE	Karolína Plíšková	6	5
FRA	Caroline Garcia	7	6
USA	Sloane Stephens	9	7
CZE	Petra Kvitová	10	8

• ¹ Rankings are as of 16 April 2018.

Other entrants

The following players received wildcards into the main draw:

• Antonia Lottner
• Maria Sharapova
• Laura Siegemund
• CoCo Vandeweghe

The following players received entry from the qualifying draw:

• Zarina Diyas
• Marta Kostyuk
• Veronika Kudermetova
• Markéta Vondroušová

The following player received entry as a lucky loser:

• Carina Witthöft

Withdrawals

Before the tournament

• Anastasija Sevastova →replaced by Carina Witthöft

Retirements

• Angelique Kerber
• Garbiñe Muguruza
• Markéta Vondroušová

Doubles main draw entrants

Seeds

Country	Player	Country	Player	Rank1	Seed
SLO	Andreja Klepač	ESP	María José Martínez Sánchez	34	1
RUS	Alla Kudryavtseva	CZE	Andrea Sestini Hlaváčková	42	2
NED	Kiki Bertens	NED	Demi Schuurs	45	3
USA	Raquel Atawo	GER	Anna-Lena Grönefeld	59	4

• ¹ Rankings as of April 16, 2018.

Other entrants

The following pair received a wildcard into the main draw:

• Antonia Lottner / Lena Rüffer

Finals

Singles

• Karolína Plíšková defeated CoCo Vandeweghe, 7–6^(7–2), 6–4

Doubles

• Raquel Atawo / Anna-Lena Grönefeld defeated Nicole Melichar / Květa Peschke, 6–4, 6–7^(5–7), [10–5]