Samuel Kalu (born 26 August 1997) is a Nigerian footballer who plays as winger for French club Bordeaux.
On 9 December 2015, Kalu signed a two-year contract with the Slovak side AS Trenčín. He made his professional debut for Trenčín against ŠK Slovan Bratislava on 27 February 2016.
On 4 January 2017, he was transferred to Belgium top division club KAA Gent.
On 6 August 2018, Kalu signed for Ligue 1 side Bordeaux, signing a five-year contract.
On 13 October 2018, he scored his first international goal with the Nigeria senior national team against Libya. He scored the final goal in a 4–0 victory.