The 2018 WTA Premier tournaments are 21 of the tennis tournaments on the 2018 WTA Tour. The WTA Tour is the elite tour for women's professional tennis. The WTA Premier tournaments rank below the Grand Slam events and above the WTA International tournaments. They are divided into three levels: Premier Mandatory (Indian Wells, Miami, Madrid and Beijing), Premier 5 (Doha, Rome, Canada, Cincinnati and Wuhan), and Premier (12 tournaments in Europe, United States and Australia).^[1]

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists	Ref
1 January	Brisbane International Brisbane, Australia	Elina Svitolina 6–2, 6–1	Aliaksandra Sasnovich	Anastasija Sevastova Karolína Plíšková	Aleksandra Krunić Alizé Cornet Johanna Konta Kaia Kanepi	[2]
		Kiki Bertens Demi Schuurs 7–5, 6–2	Andreja Klepač María José Martínez Sánchez			[3]
8 January	Sydney International Sydney, Australia	Angelique Kerber 6–4, 6–4	Ashleigh Barty	Daria Gavrilova Camila Giorgi	Garbiñe Muguruza Barbora Strýcová Agnieszka Radwańska Dominika Cibulková	[4]
		Gabriela Dabrowski Xu Yifan 6–3, 6–1	Latisha Chan Andrea Sestini Hlaváčková			[5]
29 January	St. Petersburg Ladies' Trophy St. Petersburg, Russia	Petra Kvitová 6–1, 6–2	Kristina Mladenovic	Daria Kasatkina Julia Görges	Caroline Wozniacki Kateřina Siniaková Elena Rybakina Jeļena Ostapenko	[6]
		Timea Bacsinszky Vera Zvonareva 2–6, 6–1, [10–3]	Alla Kudryavtseva Katarina Srebotnik			[7]
19 February	Dubai Tennis Championships Dubai, UAE	Elina Svitolina 6–4, 6–0	Daria Kasatkina	Angelique Kerber Garbiñe Muguruza	Naomi Osaka Karolína Plíšková Elena Vesnina Caroline Garcia	[8]
		Chan Hao-ching Yang Zhaoxuan 4–6, 6–2, [10–6]	Hsieh Su-wei Peng Shuai			[9]
2 April	Volvo Car Open Charleston, USA	Kiki Bertens 6–2, 6–1	Julia Görges	Madison Keys Anastasija Sevastova	Alizé Cornet Bernarda Pera Daria Kasatkina Kristýna Plíšková	[10]
		Alla Kudryavtseva Katarina Srebotnik 6–3, 6–3	Andreja Klepač María José Martínez Sánchez			[11]
23 April	Porsche Tennis Grand Prix Stuttgart, Germany	Karolína Plíšková 7–6(7–2), 6–4	CoCo Vandeweghe	Caroline Garcia Anett Kontaveit	Simona Halep Elina Svitolina Jeļena Ostapenko Anastasia Pavlyuchenkova	[12]
		Raquel Atawo Anna-Lena Grönefeld 6–4, 6–7(5–7), [10–5]	Nicole Melichar Květa Peschke			[13]
18 June	Birmingham Classic Birmingham, UK	Petra Kvitová 4–6, 6–1, 6–2	Magdaléna Rybáriková	Barbora Strýcová Mihaela Buzărnescu	Lesia Tsurenko Dalila Jakupović Julia Görges Elina Svitolina	[14]
		Tímea Babos Kristina Mladenovic 4–6, 6–3, [10–8]	Elise Mertens Demi Schuurs			[15]
25 June	Eastbourne International Eastbourne, UK	Caroline Wozniacki 7–5, 7–6(7–5)	Aryna Sabalenka	Angelique Kerber Agnieszka Radwańska	Ashleigh Barty Daria Kasatkina Jeļena Ostapenko Karolína Plíšková	[16]
		Gabriela Dabrowski Xu Yifan 6–3, 7–5	Irina-Camelia Begu Mihaela Buzărnescu			[17]
30 July	Silicon Valley Classic San Jose, USA	Mihaela Buzărnescu 6–1, 6–0	Maria Sakkari	Danielle Collins Elise Mertens	Victoria Azarenka Venus Williams Johanna Konta Ajla Tomljanović	[18]
		Latisha Chan Květa Peschke 6–4, 6–1	Lyudmyla Kichenok Nadiia Kichenok			[19]
20 August	Connecticut Open New Haven, USA	Aryna Sabalenka 6–1, 6–4	Carla Suárez Navarro	Julia Görges Monica Puig	Belinda Bencic Ekaterina Makarova Petra Kvitová Caroline Garcia	[20]
		Andrea Sestini Hlaváčková Barbora Strýcová 6–4, 6–7(7–9), [10–4]	Hsieh Su-wei Laura Siegemund			[21]
17 September	Toray Pan Pacific Open Tokyo, Japan	Karolína Plíšková 6–4, 6–4	Naomi Osaka	Camila Giorgi Donna Vekić	Victoria Azarenka Barbora Strýcová Alison Riske Caroline Garcia	[22]
		Miyu Kato Makoto Ninomiya 6–4, 6–4	Andrea Sestini Hlaváčková Barbora Strýcová			[23]
15 October	Kremlin Cup Moscow, Russia	Daria Kasatkina 2–6, 7–6(7–3), 6–4	Ons Jabeur	Johanna Konta Anastasija Sevastova	Anastasia Pavlyuchenkova Aliaksandra Sasnovich Anett Kontaveit Vera Zvonareva	[24]
		Alexandra Panova Laura Siegemund 6–2, 7–6(7–2)	Darija Jurak Raluca Olaru			[25]