Fergus Burke (born 3 September 1999) is a Scotland international rugby union player, currently playing for Premiership Rugby club Saracens in England, and previously for Super Rugby franchise Crusaders, and National Provincial Championship team Canterbury. Born in New Zealand, he represents Scotland at international level after qualifying on ancestry grounds.

Burke was born in Gisborne, New Zealand, to an English mother, Julie, and a New Zealand father, Richard. He has one sibling, an older sister named Georgia. He began playing rugby union at the age of five, but focused on playing football for much of his childhood, before returning to rugby in his teenage years, when he attended St Paul's Collegiate School in Hamilton. Playing primarily as a fly-half, he featured in his school's first team for several seasons, competing in the Central North Island High School Championship. He won the title in 2016, after scoring half of his team's points in the final.

After high school, Burke was selected for the Chiefs under-18 team. However, he was spotted during a pre-season training camp by the Crusaders, who recruited him into their academy. He then moved to Canterbury where, in addition to rugby training, he studied for a business degree at the University of Canterbury. He initially played for the Crusaders under-18s team, followed by the Canterbury under-19s team.

In 2019, Burke began training with the Crusaders professional squad, before being named to the Canterbury provincial senior squad for the National Provincial Championship (NPC). He made his NPC debut on 10 August 2019, against Waikato. In total, he played 10 games in his first NPC season, with two starts.

Following his provincial debut, Burke was selected by the Crusaders to play in the 2020 Super Rugby season, operating as the third-choice fly-half behind Richie Mo'unga and Brett Cameron. He made his Super Rugby debut on 14 March 2020, coming on as a substitute against Japanese franchise Sunwolves, and scored nine points, including a try. This was his only game with the Crusaders in 2020, as the competition was suspended shortly afterwards, due to the COVID-19 pandemic, and he did not feature in Super Rugby Aotearoa. However, he appeared regularly for Canterbury in the NPC that year.

In the 2021 Super Rugby season, Burke established himself as the preferred understudy to Mo'unga with the Crusaders, and played a total of eight games. He made his first start for the franchise on 4 June 2021, against Western Force.

For the 2022 Super Rugby season, Burke took advantage of Mo'unga's absence at the beginning of the campaign to make several starting appearances. He played a total of nine games during the season, including five as a starter, although he did not participate in the knockout stages, as the team won the title. That same year, he also enjoyed a major role in Canterbury's run to the final of the 2022 NPC, finishing as the competition's top scorer, with 147 points. Subsequently, Burke extended his contract with the Crusaders until 2024.

Burke became a regular starter for the Crusaders in the 2023 Super Rugby season, although he played primarily at full-back, with Mo'unga continuing as the starting outside half. Across the year, Burke featured in a total of 17 matches for the franchise, which included involvements in all of the team's play-off matches, culminating in the 2023 Super Rugby Pacific final, which the Crusaders won 25–20 against the Chiefs to claim the title. He also recorded a further 10 starting appearances for Canterbury, almost all of which were in the fly-half position, in the 2023 NPC.