Desmarais Family History
Desmarais Name Meaning
French: habitational name with fused preposition and definite article des ‘from the’ for someone from any of various places called Les Marais (from Old French mareis ‘marsh’). Alternatively the name may simply have been topographic. Compare Demarais Demar Demara Demarie and Demore .
Source: Dictionary of American Family Names 2nd edition, 2022