A court in Paris handed Le Pen the fine for making the comments about the Nazi gas chambers.
Prosecutors in France opened an investigation against the former far-right leader over comments he made in an interview in April last year.
France has strict laws against denying crimes against humanity, which Le Pen was convicted of, according to the BBC.
The comments led to a bitter battle between Le Pen and his daughter, Marine Le Pen, who took over from him as leader of National Front in 2011.
He is no stranger to controversy, having said in 2014 that Ebola could be a solution to Europe's "immigration problem", while in 1998 the European Parliament lifted his immunity allowing a German prosecutor to open a criminal investigation against him for belittling the Holocaust.
Marine Le Pen also appeared in court in 2015 to answer for comments she made that compared French muslims to the Nazi occupation of France.
Le Pen senior co-founded National Front in 1972.