Structures pour deux pianos is a composition for two pianos by Pierre Boulez, first completed in 1952. The piece exemplifies integral serial techniques of post‑war modernism, employing tightly organised pitch and rhythmic series with pointillistic and contrapuntal textures between the two instruments, and it occupies a notable position in Boulez's early career as an exploration of total serialism within mid‑20th‑century avant‑garde music.