1990 European Indoor Championships – Singles

Ronald Agénor defeated Alexander Volkov 4–6, 6–4, 7–6(10–8) in the final to secure the title.

Seeds

 * 1)  Goran Ivanišević (second round)
 * 2) 🇸🇪 Jonas Svensson (quarterfinals)
 * 3) 🇸🇪 Magnus Gustafsson (first round)
 * 4) 🇦🇹 Horst Skoff (second round)
 * 5)  Petr Korda (second round)
 * 6)  Ronald Agénor '''(champion)
 * 7) 🇦🇷 Franco Davín (first round)
 * 8)  Alexander Volkov (final)

Key

 * Q - Qualifier
 * WC - Wild card
 * LL - Lucky loser