Raymond Edward "Ray" Johnson (October 16, 1927 – January 13, 1995) was an American artist. Known primarily as a collagist and correspondence artist, he was a seminal figure in the history of Neo-Dada and early Pop art and was described as "New York's most famous unknown artist". Johnson also staged and participated in early performance art events as the founder of a far-ranging mail art network – the New York Correspondence School – which picked up momentum in the 1960s and is still active today. He is occasionally associated with members of the Fluxus movement but was never a member. He lived in New York City from 1949 to 1968, when he moved to a small town in Long Island and remained there until his suicide.

Born in Detroit, Michigan, on October 16, 1927, Ray Johnson grew up in a working-class neighborhood and attended Cass Technical High School where he was enrolled in the advertising art program. He took weekly classes at the Detroit Art Institute and spent a summer drawing at Ox-Bow School in Saugatuck, Michigan, affiliated with the Art Institute of Chicago.

Johnson left Detroit after high school in the summer of 1945 to attend the progressive Black Mountain College (BMC) in North Carolina, where he stayed for the next three years (spending the spring 1946 semester at the Art Students League in New York but returning the following summer). Josef Albers, before and after his notable sabbatical in Mexico, was in residence at Black Mountain College for six of the ten semesters that Johnson studied there. Anni Albers, Walter Gropius, Lyonel Feininger, Robert Motherwell, Ossip Zadkine, Paul Rand, Alvin Lustig, Ilya Bolotowsky, Jacob Lawrence, Beaumont Newhall, M. C. Richards, and Jean Varda also taught at BMC during Johnson's time there. Johnson decided on Albers' advice to stay at BMC for a final term in summer 1948, when the visiting faculty included John Cage, Merce Cunningham, Willem de Kooning, Buckminster Fuller, and Richard Lippold. Johnson took part in "The Ruse of Medusa" – the culmination of Cunningham's Satie Festival - with Cage, Cunningham, Fuller, Willem and Elaine de Kooning, Lippold, Ruth Asawa, Arthur Penn, and others among the cast and crew. "Because of those who participated, the event has taken on the reputation of a watershed event in 'mixed media'" wrote Martin Duberman in his history of BMC.

In the documentary How to Draw a Bunny, Richard Lippold confessed to carrying on a love affair with Johnson for several years.

I risk to say, [that at Black Mountain College] 'anything went'—between the students and the faculty ... he would arrive every morning with a little bouquet of wild flowers, and singing. Eventually our relationship became very intimate, so I brought him back to New York ... and obviously, we didn't live together, steadily, because I had my family. We were quite close together until 1974, so that's a long period of time. From '48 to '74, twenty some years. Because it was a very intimate relationship, a loving relationship.

Johnson moved with Richard Lippold to New York City by early 1949, rejoining Cage and Cunningham and befriending, within the next couple of years, Robert Rauschenberg, Jasper Johns, Cy Twombly, Ad Reinhardt, Stan Vanderbeek, Norman Solomon, Lucy Lippard, Sonia Sekula, Carolyn Brown and Earle Brown, Judith Malina, Diane di Prima, Julian Beck, Remy Charlip, James Waring, and innumerable others. With the American Abstract Artists group, Johnson painted geometric abstractions that, in part, reflected the influence of Albers. But by 1953 he turned to collage and left the American Abstract Artists, rejecting his early paintings, which it is rumored that he later burned in Cy Twombly's fireplace. Johnson began to create small, irregularly shaped works incorporating fragments from popular culture, most notably the Lucky Strikes logo and images from fan magazines of such movie stars as Elvis Presley, James Dean, Marilyn Monroe, and Shirley Temple. In the summer of 1955, he coined a term for these small collages: "moticos". He carried boxes of moticos around New York, showing them on sidewalks, at cafes, in Grand Central Station and other public places; he asked passersby what they thought of them, and recorded some of their responses. He began mailing collages to friends and strangers, along with a series of manifestos, mimeographed for distribution, including "What is a Moticos?", excerpts of which were published in an article by John Wilcock in the inaugural issue of The Village Voice.

A friend of Johnson's, art critic Suzi Gablik, brought photographer Elisabeth Novick to document an installation of dozens of Johnson's moticos in autumn of 1955. (Most of these were destroyed or recycled by the artist.) "The random arrangement, on a dilapidated cellar door in Lower Manhattan may even have been the first informal Happening," she recalled later. According to Henry Geldzahler, "[Ray's] collages Elvis Presley No. 1 and James Dean stand as the Plymouth Rock of the Pop movement." Johnson's friend Lucy Lippard would later write that "The Elvis ... and Marilyn Monroe [collages], heralded Warholian Pop." Johnson was quickly recognized as part of the nascent Pop generation. A note about the cover image in January 1958's Art News pointed out that "[Jasper] Johns' first one-man show ... places him with such better-known colleagues as Rauschenberg, Twombly, Kaprow and Ray Johnson".

Johnson worked part-time at the Orientalia Bookstore on the Lower East Side as he began to deepen his understanding of Zen philosophy and to employ "chance" in his work. Both of these interests increasingly informed his collages, performances, and mail art. Johnson also found occasional work as a graphic designer. He had met Andy Warhol by 1956; both designed several book covers for New Directions and other publishers. Johnson had a series of whimsical flyers advertising his design services printed via offset lithography, and began mailing these out. These were joined in 1956–7 by two small promotional artists' books, BOO/K/OF/THE/MO/NTH and P/EEK/A/BOO/K/OFTHE/WEE/K, self-published in editions of 500.