The 2001 Energis Open was a men's tennis tournament played on outdoor clay courts in Amsterdam, Netherlands and was part of the International Series of the 2001 ATP Tour.

It was the 44th edition of the tournament and was held from 16 July until 22 July 2001.

Second-seeded Àlex Corretja won the singles title.

Àlex Corretja defeated Younes El Aynaoui 6–3, 5–7, 7–6(7–0), 3–6, 6–4 Paul Haarhuis / Sjeng Schalken defeated Àlex Corretja / Luis Lobo 6–4, 6–2