In a victory speech made outside the Louvre Museum, Macron thanked his family and those close to him as the crowd was cheering “Brigitte!”
As she joined him on stage before the traditional national anthem, Trogneux kissed his hand.
For the final salute, they were joined by Trogneux’s daughter from a first marriage and her granddaughter.
Trogneux, 64, has been constantly by his side during his campaign, managing his agenda, editing his speeches and advising him on his stage presence.
The couple married in 2007.
Asked about what role Trogneux would play at the Elysee if he were elected, Macron has said that he will propose that within the first weeks of his presidency a formal, albeit unremunerated, role is established for the French First Lady and that she will have her say in how that role is defined.