Peter Alexander was an American artist who was part of the Light and Space artistic movement in southern California in the 1960s. He is notable for his resin sculptures from the 1960s and 1970s.

Light and Space denotes a loosely affiliated art movement related to op art, minimalism and geometric abstraction originating in Southern California in the 1960s and influenced by John McLaughlin. It is characterized by a focus on perceptual phenomena, such as light, volume and scale, and the use of materials such as glass, neon, fluorescent lights, resin and cast acrylic, often forming installations conditioned by the work's surroundings. Whether by directing the flow of natural light, embedding artificial light within objects or architecture, or by playing with light through the use of transparent, translucent or reflective materials, Light and Space artists make the spectator's experience of light and other sensory phenomena under specific conditions the focus of their work. From the movement's inception, artists were incorporating into their work the latest technologies of the Southern California-based engineering and aerospace industries to develop sensuous, light-filled objects. Turrell, who has spread the movement worldwide, summed up its philosophy in saying, "We eat light, drink it in through our skins."