The artist known for his surrealist paintings and dreamlike imagery is Salvador Dalí. Dalí's work is characterized by unexpected juxtapositions, vivid colors, and bizarre scenes that challenge viewers' perceptions of reality. His most famous piece, "The Persistence of Memory," features melting clocks and distorted landscapes, encapsulating the fluidity of time and memory. Dalí’s exploration of the subconscious and his unique artistic style have left an enduring influence on the art world, making him a defining figure of the surrealist movement.