The Hôtel Thellusson[1] was a luxurious hôtel particulier located in Paris, France, built in 1778 by Claude-Nicolas Ledoux for Marie-Jeanne Girardot de Vermenoux (1736–1781), the widow of Georges-Tobie de Thellusson [fr], a Genevan banker.
After her death in 1781, Mme Thelusson's eldest son, John Isaac de Thellusson Sorcy (1764–1828) completed the house.
After the Thermidorian Reaction, there was a "victims' ball" in the hotel, for people who had had a close relative guillotined during the Revolution.
John Isaac sold the hotel in 1802 to the Prince Joachim Murat, who exchanged it in 1807 with Napoleon Bonaparte for the Hôtel de l'Élysée, which was renamed the Élysée Palace, as well as one million francs.
Napoleon offered the house to Tsar Alexander Ist as the Russian Embassy in France.