Catherine Bagration (1783–1857), was a Russian noble, salonist and informal diplomat. She was known in contemporary Europe for her beauty, love affairs and adventurous life style. She acted as an informal diplomat in influenced Austrian policy in a Pro-Russian and anti-French fashion, and is credited with having influenced Austria to join the coalition against Napoleon.
She was the daughter of count Paul Martynovich Skavronsky and Yekaterina von Engelhardt, niece of Grigory Potyomkin, and married prince Pyotr Bagration in 1800. She separated from her spouse in 1805, and spent rest of her life in Europe. In 1810-15, she lived in Vienna, where she hosted a political salon which functioned as a center of anti-Napoleonic opposition. She also had a relationship with Klemens von Metternich. She moved to Paris in 1815 and married Baron Howden in 1830.