2017 Aegon Ilkley Trophy – Men's singles

Lu Yen-hsun was the defending champion but chose not to defend his title.

Márton Fucsovics won the title after defeating Alex Bolt 6–1, 6–4 in the final.

Seeds
• # 🇩🇴 Víctor Estrella Burgos (first round)

• # 🇸🇰 Norbert Gombos (second round)

• # 🇷🇺 Evgeny Donskoy (semifinals)

• # 🇺🇸 Tennys Sandgren (first round)

• # 🇯🇵 Go Soeda (first round)

• # Darian King (first round)

• # 🇷🇺 Konstantin Kravchuk (second round)

• # 🇺🇦 Illya Marchenko (second round)