Gilbert Montagné's son is married to his wife's daughter.

Gilbert Montagne is the father of two sons, Nicolas et Eric, from his first marriage. Eric married one of his second wife's daughters Nicholas.

Long before living in France, Gilbert Montagne resided at Canada, where he was married to Maureen Byrne. The singer went through a very difficult time following his divorce. He then decided to go to France. There he has the chance to meet Nicholas, who was also coming out of a divorce. The couple got married around twenty years ago. This union had a “ricochet” effect sinceEric, one of the sons of Gilbert married one of the daughters of Nikole, Cécile. The couple have two little girls Mia et Ava who are fans of their grandfather.