Ronald-Cecil Sportes (born in 1943 in Orléanville, Algeria) is a French architect and designer whose work is distinguished by its experimental and multidisciplinary character. Trained in Paris, he began his career collaborating with leading figures in design and architecture before establishing his own studio in 1975. From the late 1960s, he explored inflatable structures and showed a strong interest in new materials and emerging technologies, which informed much of his creative output. His work spans furniture, lighting, and interior architecture, including projects ranging from seating and lamps to the design of public spaces, transportation hubs, and prestigious corporate headquarters. Among his most emblematic creations are the Sum UP chair (1982), with its constructivist lines, the sculptural Spiro 100 wall lamp (1970), and several inflatable prototypes from the 1960s. His approach, marked by experimentation, innovation, and meticulous attention to detail, established him as a singular and influential figure in French design during the second half of the 20th century.