| Kosta Petratos | |
| Fullname: | Kosta Petratos |
| Birth Date: | 1998 3, df=yes |
| Birth Place: | Sydney, Australia |
| Height: | 181cm |
| Position: | Forward |
| Currentclub: | St George City |
| Youthyears1: | 2013 |
| Youthclubs1: | FNSW NTC |
| Youthyears2: | 2015–2017 |
| Youthclubs2: | Perth Glory |
| Youthyears3: | 2017–2020 |
| Youthclubs3: | Newcastle Jets |
| Years1: | 2014–2015 |
| Caps1: | 25 |
| Goals1: | 4 |
| Clubs1: | FFA CoE |
| Years2: | 2016–2017 |
| Caps2: | 9 |
| Goals2: | 0 |
| Clubs2: | Perth Glory |
| Years3: | 2016–2017 |
| Caps3: | 12 |
| Goals3: | 4 |
| Clubs3: | Perth Glory NPL |
| Years4: | 2017–2021 |
| Caps4: | 24 |
| Goals4: | 1 |
| Clubs4: | Newcastle Jets |
| Years5: | 2018–2020 |
| Caps5: | 10 |
| Goals5: | 2 |
| Clubs5: | Newcastle Jets NPL |
| Years6: | 2022 |
| Clubs6: | Olympias Lympion |
| Years7: | 2022 |
| Caps7: | 8 |
| Goals7: | 1 |
| Clubs7: | Heidelberg United |
| Years8: | 2023– |
| Caps8: | 35 |
| Goals8: | 11 |
| Clubs8: | St George City |
| Nationalyears1: | 2014–2015 |
| Nationalteam1: | Australia U-17 |
| Nationalcaps1: | 15 |
| Nationalgoals1: | 7 |
| Club-Update: | 28 March 2024 |
| Nationalteam-Update: | 13 February 2016 |
Kosta Petratos (born 1 March 1998) is an Australian professional soccer player who plays as a forward for St George City in NPL NSW.
Petratos started his youth career at the Football New South Wales National Training Centre. In 2014 he joined the FFA Centre of Excellence talent identification and player development program in Canberra, coached by Tony Vidmar, before he was signed by Perth Glory for the 2016–17 A-League season. He made 9 senior cap appearances for the Glory. Petratos signed for the Newcastle Jets for the 2017–18 A-League season to gain more game time opportunities.[1] [2] In 2022, Petratos departed the Jets and joined second division football club Olympias Lympion, in Cyprus.
Petratos is of Greek ancestry, and comes from a footballing family. His father Angelo played as a defender for Sydney Olympic FC,[3] his older brother Dimitri, younger brother Maki and youngest sister Anastasia are also football players, while his younger sister Panagiota previously played for the Newcastle W-League team in 2021.[4] [5] [6]