Sydie Frederick Peck (born 13 September 2004) is an English professional footballer who plays as a midfielder for Sheffield United. Peck is a youth product of Arsenal and moved over to the academy of Sheffield United on 15 July 2021. He joined Oldham Athletic on a short-term loan in the National League on 11 November 2022. After an impressive start where he played all of the available matches for Oldham, he extended his loan for another month on 9 January 2023. On 30 January 2023, he was recalled to his parent club Sheffield United after making 9 appearances for Oldham Athletic. Peck debuted with Sheffield United as a substitute in a 1–0 Premier League win over Brentford on 9 December 2023.