1997 Croatia Open Umag
Date	21–27 July
Edition	8th
Category	World Series
Draw	32S / 16D
Prize money	$375,000
Surface	Clay / outdoor
Location	Umag, Croatia
Champions
Singles
Félix Mantilla[1]
Doubles
Dinu Pescariu / Davide Sanguinetti[2]
← 1996 · Croatia Open Umag · 1998 →

The 1997 Croatia Open Umag was a men's tennis tournament played on outdoor clay courts in Umag, Croatia that was part of the World Series of the 1997 ATP Tour. It was the eighth edition of the tournament and was held from 21 July until 27 July 1997. Third-seeded Félix Mantilla won the singles title.

Finals

Singles

Félix Mantilla defeated Sergi Bruguera, 6–3, 7–5

• It was Mantilla's 3rd title of the year and the 4th of his career.

Doubles

Dinu Pescariu / Davide Sanguinetti defeated Dominik Hrbatý / Karol Kučera, 7–6, 6–4

• It was Pescariu's only career title. It was Sanguinetti's 1st career title.