Delanoy

Delanoy is a surname of French origin. It is typically considered to be toponymic, arising from a place-name rather than an occupation or patronymic. The form Delanoy most likely developed from a construction such as de Lanoy or De Lanoy, indicating origin from a locality named Lanoy or Lanoy-like. Variants recorded in historical and contemporary documents include De Lanoy, Lanoy, Lanoyé, and De Lanoye.

In terms of distribution, Delanoy is most frequently found in France, especially in the northern and western regions, with smaller clusters in neighbouring Belgium and other Francophone communities. The name has also spread to North America and other regions through migration, where it may appear in forms adapted to local orthographies.

The precise locality linked to the surname, and the meaning of Lanoy as a place-name, are not universally fixed, and different records may reflect regional spellings. The surname is occasionally encountered as part of compound surnames or in variant forms in historical records.

See also: Lanoy, Lanoye, De Lanoy, Delanoé. The surname is rarely used as a given name.