Kofi Balmer (born 19 September 2000) is a Northern Irish professional footballer who plays as a centre-back for Scottish Premiership club Motherwell.

[4][5] Balmer scored on his NIFL Premiership debut for Ballymena United on 29 April 2017, aged only 16, securing a 1–1 draw at Coleraine.

[12] A key member of the team who delivered decisive performances on a regular basis, he scored four goals in sixteen games in the 2020–21 league campaign.

[15][16] Larne also won the County Antrim Shield, beating league champions Linfield in the final;[15] Balmer played in the 1–0 victory on 11 January, despite having to face his father's death the previous week.

[22][21] On 15 July 2023, he joined League One side Port Vale on loan for the 2023–24 season, having already played for manager Andy Crosby in his international career.

[23][24] He tore his hamstring in a 1–0 defeat to Peterborough United at Vale Park on 24 October, which saw him ruled out of action for six weeks.

[30] On 11 June 2024, Balmer agreed on a two-year deal with Scottish Premiership club Motherwell, with the option of a further year.