Surname Guilain (Guilain 
) , in the entire world, is a rare cognomen. The surname Guilain is characteristic of France, where it is a rare surname, Belgium, and Spain, where it is a very rare surname. More frequently, Guilain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guilain | Belgium, Cameroon, Gabon, France, Democratic Republic of the Congo |
Cals, Rougon, Rohmer, Ruello, Nganga, Nkossi, Nsimba, Hazard, Farret, Malonga, Sévrière, Chachay, Carlier, Correia, Couëdic, Bourgis, Charrier, Bertrand, Delanoue, Teissere, Herrmann, Beaudouin, Petron, Bwinika, Cauchy, Achard, Paul, Rogg, Lang, Joly, Niel, Yvon, Mathe, Somon, Caron, Clark, Denisselle, Bihan, Petit, Leduc, Lobut, Houze, Zedde, Majoie, Mukuna, Sohier, Ampion, Aguera, Blanc, and Essimengane