Arnault was born in Roubaix. He is a HEC Montréal and INSEAD graduate.
Arnault started his career in the advertising department of Louis Vuitton. In 2005 he was nominated to the board of directors and became director of communications in 2007.
He created the “Core Values” campaign in 2012 featuring political figures (Mikhail Gorbachev), professional athletes (Muhammad Ali, Zinedine Zidane) and celebrities (Sean Connery, Francis Ford Coppola, Keith Richards).
In 2008 he was nominated to the editorial independence committee of Les Echos, a major French daily journal.and in 2009 he made the Young Global Leader Honourees list.
In 2011 Arnault launched the LVMH “Special Days”, the aim of which is to communicate about the workshops and expertise of the group. In 2013 he repeated the initiative and doubled the number of workshops opened to the public, bringing the total to 42. The objective was to showcase the fact that the technical know-how was continually being passed on from skilled craftsmen unto the next talented generation.
Since 2011 he is the CEO of Berluti and has worked to develop this LVMH brand through the opening of shops in California, Dubai and New York City. He hired the designer Alessandro Sartori in order to expand from a colourful shoemaker household to a full-on menswear luxury brand name. Antoine Arnault has invested €100 million in developing the brand and its colourful footwear and classic modern fit clothes.
Under his guidance, in three years Berluti's business has grown from around $45 million to approximately $130 million a year in sales.In 2013 he became chairman of Loro Piana, global leader in high-end cashmere and other fabrics, following the acquisition of the brand by LVMH.
Arnault gave several speeches on the subject of the luxury industry and its future. During the Condé Nast International Luxury Conference in 2015, he highlighted consumers’ use of digital tools in daily life that encourages luxury brands to reach consumers through such technologies. But he stated that the luxury industry specific features lie in non-obsolescence and giving physical experience, as he underlined during his speech at Stanford University in 2004.
Arnault is on the board of directors of LVMH an has been a board member in the Comité Colbert since November 2012. He has been a board member at Madrigall, the holding company controlling family-owned French publisher Gallimard, since November 2013.
Arnault is the son of Bernard Arnault and his first wife, Anne Dewavrin. He is younger brother of Delphine Arnault and has three half-brothers from his father's second marriage to Canadian pianist Hélenè Mercier; he's a contemporary art enthusiast.
Since 2011, he is in a relationship with the top model and philanthropist Natalia Vodianova, with whom he has two sons, Maxim, born on 2 May 2014. and Roman, born 4 June 2016.