1993 Croatia Open

{{TennisEventInfo|1993|Croatia Open|

| date=23–29 August

| edition=4th

| category=World Series

| draw=32S / 16D

| prize_money=$275,000

| surface=Clay / outdoor

| location=Umag, Croatia

| champs={{flagicon|AUT}} Thomas Muster{{cite web |title=1993 Umag – Singles draw |url=https://www.atptour.com/en/scores/archive/umag/439/1993/draws?matchtype=singles |publisher=Association of Tennis Professionals (ATP)}}

| champd={{flagicon|BEL}} Filip Dewulf / {{flagicon|BEL}} Tom Vanhoudt{{cite web |title=1993 Umag – Doubles draw |url=https://www.atptour.com/en/scores/archive/umag/439/1993/draws?matchtype=doubles|publisher=Association of Tennis Professionals (ATP)}}

| after_name=Croatia Open Umag

}}

The 1993 Croatia Open was a men's tennis tournament played on outdoor clay courts in Umag, Croatia that was part of the World Series of the 1993 ATP Tour. It was the fourth edition of the tournament and was held from 23 August until 29 August 1993. First-seeded Thomas Muster won his second consecutive singles title at the event.{{cite book|title=International Tennis Federation World of Tennis 1994|year=1994|publisher=CollinsWillow|location=London|isbn=9780002184564|editor=John Barrett|page=135}}