Jhon Frith Ornai Liu de Oliveira (born 17 July 2002) is a Timorese professional footballer who plays as a midfielder for Cambodian Premier League club ISI Dangkor Senchey.

[2] On 17 June 2023, Jhon joined Cambodian Premier League side, ISI Dangkor Senchey.

He make his official debut in the league match against Angkor Tiger on 6 August 2023.

He would then scored his first debut goal against Svay Rieng on 26 August 2023.

On 5 December 2021 he made his debut for the Timor-Leste national team in the opening group A match of the 2020 AFF Championship against Thailand.