Antonia Ružić (born 20 January 2003) is a Croatian tennis player.

Ružić has a career-high singles ranking by the WTA of 132, achieved on 2 December 2024.

Ružić has won 10 singles titles on the ITF Women's Circuit.

[1] Making her WTA Tour debut as a qualifier at the 2024 Jasmin Open in Monastir, Tunisia, Ružić reached the quarterfinals with wins over fourth seed Nadia Podoroska[2] and Lily Miyazaki,[3] before losing to seventh seed Lucia Bronzetti.

[4] This biographical article relating to Croatian tennis is a stub.