Thomas de Grey
Thomas de Grey may refer to:
- Thomas de Grey (1680–1765), MP for Norfolk 1715–27
- Thomas de Grey (1717–1781), MP for Norfolk 1764–74
- Thomas de Grey, 2nd Baron Walsingham, MP for Wareham 1774, Tamworth 1774–80 and Lostwithiel 1780–81
- Thomas de Grey, 2nd Earl de Grey, British Tory politician and statesman
- Thomas de Grey, 4th Baron Walsingham, British peer
- Thomas de Grey, 5th Baron Walsingham, British peer
- Thomas de Grey, 6th Baron Walsingham, English politician and amateur entomologist