See main article: article and 2018 Shymkent Challenger.
Singles matches were held in 2018 at the 2018 Shymkent Challenger clay court tennis tournament held June 4 to 9 in Shymkent, Kazakhstan.
Ričardas Berankis was the defending champion but chose not to defend his title.
Yannick Hanfmann won the title after defeating Roberto Cid Subervi 7–6(7–3), 4–6, 6–2 in the final.