Cognomen Gailard (Gailard 
) , across the world, is a very rare family name. The surname Gailard is habitual in Belgium, where it is a very rare surname, France, and Canada, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in the United States, France, and Belgium. Likewise, Gailard is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gailard | Belgium, France, United States, Thailand, Philippines |