France won the 2018 FIFA World Cup after beating Croatia 4-2 in the final at Moscow's Luzhniki Stadium on Monday (AEST).

"It's difficult to describe how proud I am of my team," Giroud said.

"Of course, there was some criticism, we used to be blamed for a boring playing style, but we showed strength, character and confidence.

"We defended well. People say that our lives will change after the tournament, but for us this is first of all a big honor to make France happy."

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The 31-year-old added that he gave all of his strength for the sake of the victory.

"I haven't scored at this World Cup, but it means nothing in comparison with the fact of us winning back the world champions title. I gave all of my strength for the sake of the team's victory."

Russia's first-ever FIFA World Cup kicked off on June 14 and came to a close on Monday with 64 games played in 11 cities across the country.