Guy Lefèvre is a French designer known for his work with Maison Jansen in the 1960s and collaborations with brands like Knoll, Steiner, and Artifort. His designs, featuring modern materials like metal, glass, and leather, are marked by refined aesthetics and elegant, simple lines, especially in armchairs and sofas. Widely regarded as one of the leading French designers of the late 20th century, Lefèvre earned numerous accolades throughout his career.