2018 Wimbledon Championships – Boys' singles

Alejandro Davidovich Fokina was the reigning champion, but participated in the men's singles qualifying as a wild card instead, losing to Peter Polansky in the second round.

Tseng Chun-hsin won the title, defeating Jack Draper in the final, 6–1, 6–7(2–7), 6–4.

Seeds
• Tseng Chun-hsin (champion)

• 🇦🇷 Sebastián Báez (first round)

• 🇺🇸 Sebastian Korda (first round)

• 🇫🇷 Hugo Gaston (third round)

• 🇨🇴 Nicolás Mejía (semifinals)

• 🇰🇿 Timofei Skatov (third round)

• 🇧🇬 Adrian Andreev (second round)

• 🇯🇵 Naoki Tajima (first round)

• 🇦🇷 Facundo Díaz Acosta (first round)

• 🇨🇿 Dalibor Svrčina (second round)

• 🇺🇸 Tristan Boyer (third round)

• 🇪🇸 Carlos López Montagud (first round)

• 🇷🇴 Filip Cristian Jianu (first round)

• 🇦🇷 Juan Manuel Cerúndolo (second round)

• 🇺🇸 Drew Baird (second round)

• 🇬🇧 Aidan McHugh (first round)

Seeds
• # 🇨🇿 Ondřej Štyler (qualified)

• # 🇧🇷 Igor Gimenez (qualifying competition)

• # 🇦🇷 Alejo Lorenzo Lingua Lavallén (qualifying competition)

• # 🇺🇿 Sergey Fomin (qualifying competition; lucky loser)

• # 🇫🇷 Titouan Droguet (qualified)

• # 🇺🇸 Govind Nanda (qualified)

• # 🇺🇦 Pavlo Shumeiko (qualifying competition)

• # 🇧🇷 Matheus Pucinelli de Almeida (qualifying competition)

• # 🇷🇺 Alexandr Binda (qualifying competition)

• # 🇧🇪 Gauthier Onclin (qualifying competition, withdrew)

• # 🇧🇬 Simon Anthony Ivanov (qualified)

• # 🇧🇪 Louis Herman (qualified)

• # 🇺🇸 Keenan Mayo (qualified)

• # Henry von der Schulenburg (qualified)

• # 🇮🇹 Davide Tortora (first round)

• # 🇩🇪 Justin Schlageter (first round)

Qualifiers
• # 🇨🇿 Ondřej Štyler

• # 🇧🇪 Louis Herman

• # Henry von der Schulenburg

• # 🇧🇬 Simon Anthony Ivanov

• # 🇫🇷 Titouan Droguet

• # 🇺🇸 Govind Nanda

• # 🇺🇸 Keenan Mayo

• # 🇯🇵 Taisei Ichikawa

Lucky loser
• # 🇺🇿 Sergey Fomin