Sebastian Sialau

Sebastian Sialau is an Australian rugby union player, who plays for in Japan Rugby League One. His preferred position is fly-half, centre or fullback.

Early career

Sialau was born in Samoa, but moved to Australia as a child. He attended Fountain Gate Secondary College in Victoria, before finishing his education at Toowoomba Grammar School. He plays his club rugby for Melbourne Harlequins and was a member of the Victoria academy and Melbourne Rebels academy from 2016.

Professional career

Sialau signed for the for the 2022 Super Rugby Pacific season, having previously been a member of their Elite Pathway. He joined ahead of the 2023 Japan Rugby League One season, but did not make an appearance in the top league. Ahead of the 2025 season, he joined, making eleven appearances in the 2025 Japan Rugby League One season and one of three professional players.