Pierre Kalulu

Lyon

Kalulu moved from his youth club Saint-Priest to the youth academy of Olympique Lyon in the summer of 2010. In Lyon, he passed through the different youth departments from 2010 to 2018, and was elevated to their reserve team in June 2018. Ahead of the home game against Amiens played on 5 March 2020, Kalulu received his first ever call-up to the senior team. However, he remained on the bench for the entire game.

AC Milan

In the summer of 2020, Kalulu moved to Italy to join AC Milan, and signed a contract until 2025. On 10 December, he made his professional debut, playing the entire Europa League game against Sparta Prague as a left-sided centre-back; as Milan won 1–0, he was praised for helping the team keep a clean sheet. Three days later, on 13 December, Kalulu made his debut in Serie A, replacing the injured Matteo Gabbia in the fifth minute of a home game against Parma. In the following away league game against Genoa played on 16 December, he made his first-ever start in Serie A and scored a debut goal in his senior career, equalizing the score in the eventual 2–2 draw. During the 2021–22 season, after an injury to Alessio Romagnoli, Kalulu started the match against Napoli on 6 March 2022, partnering in central defence with Fikayo Tomori; he helped Milan to clinch a 1–0 win, impressing against Napoli's striker Victor Osimhen. On 12 March against Empoli, Kalulu scored his first goal of the season, a powerful curling shot from outside the box, as…

Since June 2018, Kalulu has played through the various national junior teams of France, taking part in the 2019 UEFA European Under-19 Championship. Kalulu made his senior France debut on 5 June 2025 against Spain in the UEFA Nations League, at MHPArena in Stuttgart.

Kalulu was born in the 8th arrondissement of Lyon, France, and is Congolese by descent. His father was born in Kabimba, Belgian Congo, and his mother in Likasi, Congo-Léopoldville. He acquired French nationality on 26 December 2000 through the collective effect of his parents' naturalization.

Kalulu is the younger brother of footballers Aldo Kalulu and Gédéon Kalulu. He is the older brother of Joseph Kalulu.