2019 Upper Austria Ladies Linz – Singles

Coco Gauff defeated Jeļena Ostapenko in the final, 6–3, 1–6, 6–2 to win the singles tennis title at the 2019 Linz Open. It was her first WTA Tour title. Aged 15 years and 7 months, Gauff became the youngest WTA Tour singles titlist since Nicole Vaidišová (15 years, 5 months) in 2004. Gauff was a lucky loser, only receiving a spot in the main draw because Maria Sakkari withdrew shortly before her first round match. Gauff became only the third player in WTA history to win a tournament as a lucky loser, and the first since Olga Danilović won the 2018 Moscow River Cup.

Camila Giorgi was the reigning champion, but withdrew before the tournament due to injury.

Seeds
• # Kiki Bertens (quarterfinals)

• # Belinda Bencic (first round)

• # Anastasija Sevastova (withdrew)

• # Donna Vekić (second round)

• #🇩🇪 Julia Görges (second round)

• # Maria Sakkari (withdrew)

• #🇨🇿 Barbora Strýcová (first round)

• #🇷🇺 Ekaterina Alexandrova (semifinals)

• #🇷🇺 Anastasia Pavlyuchenkova (second round)

Seeds
• # 🇯🇵 Misaki Doi (qualified)

• # 🇩🇪 Laura Siegemund (qualified)

• # Arantxa Rus (first round)

• # 🇷🇸 Nina Stojanović (qualified)

• # 🇧🇪 Kirsten Flipkens (first round)

• # 🇪🇸 Aliona Bolsova (first round)

• # 🇲🇪 Danka Kovinić (first round)

• # 🇺🇸 Caty McNally (first round)

• # 🇺🇸 Coco Gauff (qualifying competition, lucky loser)

• # 🇧🇪 Ysaline Bonaventure (qualifying competition, lucky loser)

• # 🇮🇹 Jasmine Paolini (qualifying competition)

• # 🇫🇷 Pauline Parmentier (qualifying competition)

Qualifiers
• # 🇯🇵 Misaki Doi

• # 🇩🇪 Laura Siegemund

• # 🇩🇪 Tamara Korpatsch

• # 🇷🇸 Nina Stojanović

• # 🇩🇪 Anna-Lena Friedsam

• # Stefanie Vögele

Lucky losers
• # 🇺🇸 Coco Gauff

• # 🇧🇪 Ysaline Bonaventure