Seán Grehan
| Date of birth | 08 January 2004 |
| Place of birth | Dublin |
| Nationality | Irish |
| Height | 1.88 m |
| Position | Defender |
Seán Grehan played for Bohemians during his youth career.
He was selected on Crystal Palace's subs bench for the first time on 29 August 2023 in a League Cup tie at Plymouth Argyle.
Club history
| Team | Joined | Left | Loan / Trialist |
|---|---|---|---|
| Crystal Palace | 03 Aug 2022 | 24 Jun 2025 | |
| Carlisle United | 04 Jan 2024 | 04 Apr 2024 | L |