2024 Croatia Open Umag

The 2024 Croatia Open (also known as the Plava Laguna Croatia Open Umag for sponsorship reasons) is a men's tennis tournament to be played on outdoor clay courts. It will be the 34th edition of the Croatia Open, and an ATP 250 tournament on the 2024 ATP Tour. It will take place at the International Tennis Center in Umag, Croatia, from 21 through 27 July 2024.

Doubles

 * / vs.  /

Seeds

 * 1 Rankings are as of 15 July 2024.

Other entrants
The following players received wildcards into the main draw:
 * Matej Dodig
 * Luka Mikrut
 * Mili Poljičak

The following player received entry as a special exempt:
 * Duje Ajduković

The following player received entry as an alternate:
 * 🇫🇷 Alexandre Müller

The following players received entry from the qualifying draw:
 * 🇦🇷 Guido Andreozzi
 * 🇫🇷 Enzo Couacaud
 * 🇦🇹 Filip Misolic
 * 🇦🇷 Marco Trungelliti

Withdrawals

 * 🇬🇧 Jack Draper → replaced by 🇮🇹 Fabio Fognini
 * 🇬🇧 Dan Evans → replaced by 🇫🇷 Luca Van Assche

Seeds

 * 1 Rankings as of 15 July 2024.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * Karlo Kajin / Deni Žmak
 * Blaž Rola / Nino Serdarušić

Withdrawals

 * 🇮🇳 Sriram Balaji / 🇮🇳 Rohan Bopanna → replaced by 🇮🇳 Anirudh Chandrasekar / 🇮🇳 Arjun Kadhe