2019 Challenger La Manche – Singles

Maximilian Marterer was the defending champion but chose not to defend his title.

Ugo Humbert won the title after defeating Steve Darcis 6–7(6–8), 6–3, 6–3 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇫🇷 Ugo Humbert (champion)

• # 🇩🇪 Yannick Maden (third round)

• # 🇮🇹 Stefano Travaglia (semifinals)

• # 🇧🇪 Ruben Bemelmans (third round)

• # 🇮🇹 Simone Bolelli (third round)

• # 🇨🇿 Lukáš Rosol (quarterfinals)

• # 🇮🇹 Gianluigi Quinzi (third round)

• # 🇮🇹 Luca Vanni (quarterfinals)

• # 🇩🇪 Oscar Otte (quarterfinals)

• # 🇰🇿 Alexander Bublik (second round)

• # 🇩🇪 Rudolf Molleker (second round)

• # 🇩🇪 Mats Moraing (semifinals)

• # 🇪🇸 Daniel Gimeno Traver (second round)

• # 🇫🇷 Nicolas Mahut (quarterfinals, withdrew)

• # 🇧🇪 Arthur De Greef (second round, retired)

• # 🇷🇺 Alexey Vatutin (third round)