Antoine Arnault was born on 4 June 1977 in Roubaix, the eldest son of Bernard Arnault, who controls LVMH. After growing up between France and the United States, he graduated from HEC Montréal and in 2000 founded an internet company specialising in domain-name registration. After selling his stake he joined Louis Vuitton, where he became director of its regional network in France and then, after an MBA at INSEAD in 2005, director of communication; there he launched the Core Values campaign. He has been on LVMH's board since 2006.
In 2011 he became chief executive of Berluti, which he developed into a full lifestyle brand with ready-to-wear designed by Alessandro Sartori and new shops in California, Dubai and New York. The same year he launched the Journées Particulières, which open LVMH's workshops to the public for free; the 2022 edition drew 200,000 visitors.
In 2013, when LVMH bought 80% of Loro Piana, he became the company's chairman, a post LVMH says he held until 2025. Since 2020 he has been LVMH's head of image and environment, overseeing communication, image and sustainability, and he was the architect of the group's partnership with the Paris 2024 Olympic and Paralympic Games. In December 2022 he was named chief executive and vice-chairman of Christian Dior SE, and in January 2024 chairman of Berluti's supervisory board. As chairman of Agache Sport he joined the board of Paris FC in November 2024, and since February 2026 he has been a member of LVMH's executive committee.
He has lived since 2011 with the Russian model and philanthropist Natalia Vodianova, whom he married in 2020; they have two sons.