de Fay

de Fay is a French surname, and may refer to:

• Charles César de Fay de La Tour-Maubourg (1757-1831), French soldier
• Juste-Charles de Fay de La Tour-Maubourg (1774-1824), French marquess
• Marie Victor de Fay, marquis de Latour-Maubourg (1768-1850), French cavalry commander