French: habitational name from any of several places so called e.g. in Saône-et-Loire. French: from the old oblique form of the ancient Germanic personal name Mako, a variant of Mago, a short form of compound names formed with maht ‘strength power’ as the first element.

French (Maçon): occupational name for a mason (Old) French maçon.

English (mainly Cambridgeshire): variant of Mason ‘mason’; compare Machen.

This form of the surname is rare in Britain and Ireland.