The label, which is uncommon in Quebec, means Bruno Leduc cannot file another lawsuit unless he gets court approval beforehand.
"The court has no hesitation to conclude that Leduc is abusing the justice system," Court of Quebec Justice Diane Quenneville wrote in her ruling last month.
Over the past several years, Leduc filed 70 small claims against people or companies, QMI Agency reported Saturday.
Leduc also sued an airline, Transat, because he hurt his leg when he got off the airplane.
He has sued Costco Wholesale Canada for $500 because, he said, the staff took too long to put a lawn mower onto his cart.
His claims have totaled $114,000 since 2000.