Who is the best known dadaist?

Marcel Duchamp is often considered the best-known Dadaist, renowned for his provocative works that challenged traditional art concepts. His ready-mades, particularly "Fountain," a urinal presented as art, exemplified the Dada movement's embrace of absurdity and anti-art sentiments. Duchamp's influence extends beyond Dada, impacting contemporary art and conceptual practices. His work continues to inspire discussions about the nature of art and creativity.