The 1990 European Indoor Championships was an ATP men's tennis tournament held in Berlin, Germany from 8 October until 14 October 1990.

It was the inaugural edition of the tournament and was part of the World Series tier of the 1990 ATP Tour.

Sixth-seeded Ronald Agénor won the singles title by defeating eighth-seeded Alexander Volkov in the final.

[3] Ronald Agénor defeated Alexander Volkov, 4–6, 6-4, 7–6(10–8) Pieter Aldrich / Danie Visser defeated Kevin Curren / Patrick Galbraith, 7–6, 7–6

This tennis competition on the ATP Tour article is a stub.