| Jack Regan | |
| Birth Name: | Jack Regan |
| Birth Date: | 1997 5, df=yes |
| Birth Place: | Birr, County Offaly, Ireland |
| Weight: | 114kg (251lb) |
| Position: | Lock |
| Youthclubs1: | Birr |
| Amatyears1: | 2015–2017 |
| Amatyears2: | 2017–2020 |
| Amatyears3: | 2020 |
| Amatteam1: | UCD |
| Amatteam2: | Ballynahinch |
| Amatteam3: | Dunedin Sharks |
| Provinceyears1: | 2020 |
| Provinceapps1: | 11 |
| Provincepoints1: | 5 |
| Years1: | 2019–2020 |
| Years2: | 2021 |
| Years3: | 2021–2023 |
| Years4: | 2023–2024 |
| Clubs1: | Ulster |
| Clubs4: | Toyota Shuttles |
| Apps1: | 1 |
| Apps2: | 2 |
| Apps3: | 1 |
| Points1: | 0 |
| Points2: | 0 |
| Points3: | 0 |
| Ru Clubupdate: | 5 April 2021 |
| Repyears1: | 2017 |
| Repteam1: | Ireland U20 |
| Repcaps1: | 10 |
| Reppoints1: | 0 |
| Ru Ntupdate: | 30 June 2017 |
Jack Regan (born 9 May 1997) is an Irish rugby union player, currently playing for the Highlanders in Super Rugby and the Mitre 10 Cup side Otago Rugby. He previously played for Irish Pro14 team Ulster Rugby. He plays as a lock.
Regan started playing rugby underage at Birr RFC in County Offaly and was part of the Leinster under-age set up.
Regan made his senior competitive debut for Ulster in their 54–42 defeat against Leinster in the 2018–19 Pro14 on 20 December 2019, coming on as a replacement in this match.[1] In March 2020 he was released by Ulster.
Regan moved to New Zealand where he joined the Dunedin Sharks and was subsequently signed by Otago. He made his debut in Round 1 of the 2020 season against Auckland at Forsyth Barr Stadium.[2]
In February 2021 Regan was called into the Highlanders squad as injury cover for some pre-season games. Regan made his Super Rugby debut for the Highlanders on 26 February in a 13–26 defeat to the Crusaders.[3] He made his second appearance in the Highlanders first win of the season against the Chiefs in Hamilton.