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Lachlan Ilias (born 9 May 2000) is a Greece international rugby league footballer who plays as a halfback for the St George Illawarra Dragons in the National Rugby League (NRL).

Ilias was born in Australia, but is of Greek, Italian, and German heritage.^[2] He grew up in the Sydney suburb of Five Dock. He played schoolboy rugby union for Trinity Grammar and was in the 2018 Australian Schoolboys Rugby team.^[3]

He also played junior rugby league with Leichhardt Wanderers in the Balmain junior district.^{[citation needed]}

Ilias signed a development contract with Wests Tigers in 2017.^[4] In 2018, after a meeting with Anthony Seibold, Ilias transferred to the South Sydney Rabbitohs for the 2019 season.^[5]

Ilias made his debut for South Sydney at halfback in his side's 20−16 victory over the St. George Illawarra Dragons at Sunshine Coast Stadium in round 25 of the 2021 NRL season, Ilias also scored a try on debut.^[6]

In round 15 of the 2022 NRL season, Ilias was substituted shortly after half-time during South Sydney's 32-12 loss against St. George Illawarra. South Sydney were down 32-0 at half-time, and Ilias had knocked the ball on from the opening kick off.^[7] Ilias played 26 games for South Sydney in the 2022 NRL season including all three of the clubs finals matches as they reached the preliminary final for a fifth straight season. Souths lost in the preliminary final to eventual premiers Penrith 32-12.^[8]

Ilias made his international debut for Greece against France on 17 October 2022 at the 2021 Rugby League World Cup.^[9]

In round 4 of the 2023 NRL season, Ilias kicked a field goal during golden point extra-time to win the game for South Sydney over Manly 13-12.^[10] Ilias played a total of 24 games for Souths in the 2023 NRL season as the club finished 9th on the table and missed the finals.^[11]

After South Sydney lost their opening two games of the 2024 NRL season, Ilias was demoted to reserve grade and replaced with Dean Hawkins.^[12] In round 5 of the NSW Cup season, Ilias suffered a fractured tibia during South Sydney's match against the New Zealand Warriors. It was announced that Ilias would miss a minimum of three months.^[13] On 29 April, it was announced by the South Sydney club that Ilias was free to negotiate with other teams at the end of the 2024 season.^[14] On 25 November 2024, Ilias signed a two-year deal with the St. George Illawarra Dragons.^[15]

• Rabbitohs profile
• Greece profile