Swastikas on the outer walls of the Louvre, along the rue de Rivoli to the place de la Concorde, appeared this night, very large and showy, painted with red paint.
The alleged perpetrator was immediately stopped by the police.
The suspect is 31 years old, was born in Georgia and has no fixed home.
He was stopped by municipal police officers at 2:30 am right next to the Louvre and placed in custody.
Agents believe he may also be the author of another identical "tag" in the 7th arrondissement of Paris, outside the Rodin Museum.
The Minister of the Interior, Gérald Darmanin, denounced with a tweet the "ignoble Nazi symbols in the heart of Paris" while the Municipality made it known that "the cleaning services of the walls will intervene quickly to erase all traces" of the swastikas.