He was the younger son of Madeleine Dassault (née Minckès)^[3] and Marcel Dassault (born Marcel Ferdinand Bloch),^[4] from whom he inherited the Dassault Group. Both his parents were of Jewish heritage, but later converted to Roman Catholicism.

In 1929, his father founded what is now Dassault Aviation.^[5] During the Second World War, he was jailed when his father was sent to Buchenwald for refusing any cooperation from his company, Bordeaux-Aéronautique, directed by Henri Déplante, André Curvale and Claude de Cambronne, with the German aviation industry.^{[citation needed]}

He studied at the Lycée Janson-de-Sailly in the 16th arrondissement of Paris where he received his baccalauréat. He earned engineering degrees from the École Polytechnique (class of 1946) and Supaéro (class of 1951). In 1963, he received an Executive MBA from HEC Paris.^[6]

After his father's death in 1986, Serge Dassault continued developing the company, with the help of CEOs Charles Edelstenne and Éric Trappier.^{[citation needed]} His group also owned the newspaper Le Figaro. In December 1998, he was sentenced to two years' probation in the Belgian Agusta scandal, and was fined 60,000 Belgian francs (about €1,500).^{[citation needed]}

According to Forbes, the Dassault family also owns a winery, property in Paris, and an art auction house.^[7]

Dassault was a member of the Union for a Popular Movement political party, as was his son Olivier, who was a deputy in the National Assembly. He was a former mayor of the city of Corbeil-Essonnes, a southern suburb of Paris.^{[citation needed]}

In 2004, he became a senator, and in that position, he was an outspoken advocate of conservative positions on economic and employment issues, claiming that France's taxes and workforce regulations ruin its entrepreneurs.^{[citation needed]} In 2005, he inaugurated the €2 million Islamic cultural centre (comprising a mosque) in his city of Corbeil-Essonnes.^[8] In November 2012, responding to the Ayrault government's plan to legalise same-sex marriage in France, he controversially said, during an interview for France Culture, that authorising it would cause "no more renewal of the population. [...] We'll have a country of homosexuals. And so in ten years there'll be nobody left. It's stupid".^[9]

Dassault married Nicole Raffel on 5 July 1950. They had four children: Olivier, Laurent, Thierry, and Marie-Hélène.^{[10][user-generated source]}

He died suddenly in his office at the Dassault Group headquarters in Paris on 28 May 2018, from heart failure at the age of 93.^[11][5]

• List of French people by net worth
• The World's Billionaires

• Serge Dassault and family – Forbes profile