Thomas White (died 1580) was an English state official who came to prominence during the Dudley conspiracy of 1555 against Mary I of England.
During the plot, Sir Henry Dudley, a kinsman of the Duke of Northumberland, tried to place Princess Elizabeth on the throne of England, disposing of Mary.
His part in the plot was to have been a minor one whereby he was to have arrange the robbery of the Exchequer to provide finance for the plotters to pay for the army of exiles and mercenaries they were attempting to bring over from the Continent.
"In consideration," so runs the Originalia Roll, 3 and 4 Phil, and Mary, "of good and faithful service by our beloved servant, Thomas White, gentleman, in that late conspiracy against us, our crown and dignity attempted not long since by Henry Dudley and his accomplices."
In 1560, he purchased the greater part of the remaining portion of the manors of Tuxford, and his son, Sir John White, completed the acquisition of the whole.