Ralph Rumney (5 June 1934, Newcastle Upon Tyne - 6 March 2002, Manosque, Provence) was an artist and co-founder of the Situationist International.
In 1957 he co-founded the London Psychogeographical Association. This organization was, along with COBRA and the Lettrist International, involved in the formation of the Situationist International]]. However, within seven months Rumney had been 'amiably' expelled from the SI by Debord for allegedly "failing to hand in a psychogeography report about Venice on time." He spent much of his life living as a wanderer.
- "The Leaning Tower of Venice", Ark 24-26, London: Royal College of Art, 1959-1960; repr. as "Psychogeographical Report on Venice", Vague 22, Jun 1990; repr. as The Leaning Tower of Venice, Paris: Silverbridge, 2002, 36 pp. Originally intended to be published in Internationale Situationniste 1 (Jun 1958).   (English)
- "Kill John Bull with Art! What Went Wrong?", Studio International 178:917, London: Cory, Adams, and Mackay, Dec 1969, pp 216-221. 
- Le consul: entretiens avec Gérard Berréby, Paris: Allia, 1999, 124 pp; repr., 2018, 184 pp. Biographical interviews. (French)
- Pourvu que ça dure: sur le passage de quelques idées à travers le temps, Bureau des inspections banalytiques, 1999, 18 pp. (French)
- with Alan Woods, The Map Is Not The Territory, Manchester University Press, 2000, 204 pp. Biographical interviews.
- Autour de la création de l'Internationale situationniste, Arles: Sulliver, 2000, 15 pp. Catalogue. Texts by Andrew Hussey and Francesca Comisso. (French)
- Ralph Rumney: un protagonista del situazionismo: opere 1957-1995 / Ralph Rumney: un protagoniste du situationnisme: œuvres 1957-1995, Livorno: Galleria Peccolo, 2014, 46 pp. Catalogue. Texts by Yan Ciret, Sandro Ricaldone, and Renata Ghiazza. (Italian)/(French)
- Stewart Home, "About the Historification of the Situationist International: Ralph Rumney in Conversation with Stewart Home, Paris 7 April 1989", Art Monthly, London, Jun 1989.
- "The Map is not the Territory: Ralph Rumney interview 4/5/89", Vague 22: "Media Sickness", Vague Publishing, Jun 1990.
- Natalie Ferris, "Ralph Rumney: The Shape of Heads to Come", Bricks from the Kiln 1, eds. Andrew Lister and Matthew Stuart, Winchester: Winchester School of Art, 2016, pp 22-35.
- Irma Delmonte, "Ralph Rumney and His Derive in the 1950s", Venice: Museo del Camminare, 2019.