Pierre Alexis Davignon (1810 – October 7, 1878) was a physician and political figure in Canada East.
He represented Rouville in the Legislative Assembly of the Province of Canada from 1848 to 1851.
Davignon studied medicine and was licensed to practise in 1832.
He was named commissioner for the Tribunal for Minor Causes in 1836.
His grandson Alexandre Thurber later served in the assembly.