Jacob Saifiti (born 1 May 1996) is a Fiji international rugby league footballer who plays as a prop forward for the Newcastle Knights in the NRL.

[3] Saifiti played his junior rugby league for the Terrigal Sharks and The Entrance Tigers, before joining the Newcastle Knights in 2015.

[17] He played 23 matches for Newcastle in the 2021 NRL season including the club's elimination finals loss against Parramatta.

[19] Saifiti played 23 games for Newcastle in the 2022 NRL season as the club missed the finals finishing 14th on the table.

[20] In round 2 of the 2023 NRL season, Saifiti was sent off for a dangerous high tackle on Wests Tigers player Jake Simpkin.

[22] On 3 July, Saifiti was a surprise selection for New South Wales ahead of their match in game 3 of the 2023 State of Origin series.