Thomas Allier (born March 24, 1975 in Fontenay-aux-Roses, Hauts-de-Seine) is a French professional "Mid/Current School" Bicycle Motocross (BMX) racer whose prime competitive years were from 1993-2006. Allier was a member of the French Olympic BMX Team participating in the debut of BMX racing at the 2008 Summer Olympics in Beijing, China. Allier did not make it past the quarter finals.