Henry Robertson (born 22 October 1999 in Australia) is an Australian rugby union player who plays for the in Super Rugby.
His playing position is scrum-half. He was named in the Waratahs squad for the 2021 Super Rugby AU season. He had previously been named in the squads for the 2020 Super Rugby season, but didn't make any appearances. He made his debut for the Waratahs in Round 2 of the 2021 Super Rugby AU season against the , coming on as a replacement.
In July 2022 it was announced by the Western Force that Robertson had signed a one year contract. In September 2024 the Western Force announced a further two year contract deal, extending Robertson's stay until 2026.