Antonia Ružić (born 20 January 2003) is a Croatian tennis player.
Ružić has a career-high singles ranking by the WTA of 171, achieved on 19 August 2024. She also has a career-high WTA doubles ranking of 612, reached on 22 May 2023. Ružić has won eight singles titles on the ITF Women's Circuit.
On the ITF Junior Circuit, she has a career-high combined ranking of 84, achieved on 26 July 2021.
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (P#) preliminary round; (DNQ) did not qualify; (A) absent; (Z#) Davis/Fed Cup Zonal Group (with number indication) or (PO) play-off; (G) gold, (S) silver or (B) bronze Olympic/Paralympic medal; (NMS) not a Masters tournament; (NTI) not a Tier I tournament; (P) postponed; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.