The 2007 Croatia Open Umag was the 18th edition of the Croatia Open Umag tennis tournament. The tournament was held on July 23–29.
Carlos Moyà won his first and only title of the year and his 20th and final career title overall. Moyà has a fantastic record at the tournament, having won four times previously. This makes him one of only eight men to have won 5 titles at a single event in the open era.