2019 Challenger Banque Nationale de Drummondville – Singles

Denis Kudla was the defending champion but chose not to defend his title.

Ričardas Berankis won the title after defeating Yannick Maden 6–3, 7–5 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇱🇹 Ričardas Berankis (champion)

• # 🇩🇪 Yannick Maden (final)

• # 🇪🇪 Jürgen Zopp (quarterfinals)

• # 🇪🇨 Roberto Quiroz (third round)

• # 🇧🇪 Arthur De Greef (quarterfinals)

• # 🇷🇸 Nikola Milojević (third round)

• # 🇫🇷 Maxime Janvier (second round)

• # 🇦🇺 John-Patrick Smith (third round)

• # 🇺🇸 JC Aragone (second round)

• # 🇩🇴 Roberto Cid Subervi (quarterfinals)

• # Mikael Torpegaard (quarterfinals)

• # 🇺🇸 Christian Harrison (second round)

• # 🇺🇸 Thai-Son Kwiatkowski (second round)

• # 🇮🇹 Matteo Viola (semifinals)

• # 🇯🇵 Kaichi Uchida (third round)

• # 🇫🇷 Tristan Lamasine (third round)