2023 Lexington Challenger – Men's singles

Shang Juncheng was the defending champion but chose not to defend his title.

Steve Johnson won the title after defeating Arthur Cazaux 7–6(7–5), 6–4 in the final.

Seeds
• # 🇫🇷 Arthur Cazaux (final)

• # 🇺🇸 Steve Johnson (champion)

• # Wu Tung-lin (quarterfinals)

• # 🇰🇷 Hong Seong-chan (quarterfinals)

• # 🇺🇸 Tennys Sandgren (semifinals)

• # 🇦🇺 Dane Sweeny (second round)

• # 🇦🇺 Adam Walton (second round)

• # 🇦🇺 Tristan Schoolkate (second round)