Alexandre Serge Coeff (born 20 February 1992) is a French professional footballer who plays as a centre back or defensive midfielder for club Valenciennes.
Born in Brest, Coeff previously had stints with Plouzane Athletic, Stade Brestois 29, Guilers and Cavale Blanche Brest.
Coeff joined RC Lens' youth setup in 2008, aged 16. On 10 October 2008, he signed his first professional contract, agreeing to a three-year deal with Lens. A rupture of both the medial collateral ligament and anterior cruciate ligament in one of his knees delayed his professional career and, after successfully undergoing rehabilitation, he spent two years playing on the club's reserve team in the Championnat de France amateur, the fourth division of French football.
On 29 May 2011, Coeff made his professional debut, appearing as a substitute in a 0âÂÂ4 away defeat to AS Nancy. After being sparingly used during the 2011âÂÂ12 campaign, he appeared regularly in 2012âÂÂ13, playing in 37 league matches and scoring once.
On 13 July 2013, Coeff signed a five-year deal with Udinese Calcio. A day later, he was loaned to Granada CF, in a season-long deal.
On 4 August 2015, Coeff joined to Ligue 1 club Gazélec Ajaccio.
In July 2016, Coeff returned to France, and signed a two-year loan contract with Ligue 2 side Brest.
On 11 September 2018, Coeff moved to the Super League Greece, joining AEL on a two-year deal. On 3 November 2018, he scored his first goal for the club, opening the score in a 1âÂÂ1 away draw against Levadiakos.
On 18 January 2019, he signed a two-year contract with Gazélec Ajaccio.
On 1 February 2023, Coeff signed with Brescia in Italian Serie B.
On 25 July 2023, he signed with French club Stade Malherbe Caen in Ligue 2.
On 24 July 2024, the Indian Super League club Kerala Blasters FC announced the signing of Coeff on a one-year deal. He made his debut for the club on 23 August in a 1âÂÂ0 loss against Bengaluru FC in the 2024 Durand Cup quarter final by coming as a substitute in the 63rd minute. Coeff made his first league appearance against Punjab FC on 15 September, which ended in a 1âÂÂ2 defeat for the Blasters, where he played the entire 90 minutes. He scored his maiden goal for the Blasters against Mohammedans S.C., which ended in a 3âÂÂ0 win for the Blasters. On 17 January 2025, Kerala Blasters FC and Alexandre Coeff have mutually agreed to part ways.
On 26 January 2025, Coeff signed with Valenciennes.
Born in France, Coeff is of Algerian descent through his maternal grandmother. He is a France youth international, having earned caps from the under-16 to the under-21 levels.