Robert Malcolm Ward Dixon (Gloucester, England, 25 January 1939) is a Professor of Linguistics at The Cairns Institute, James Cook University, Queensland, and formerly Director of the Research Centre for Linguistic Typology at La Trobe University, Melbourne, Australia.
In 1996, Dixon and another linguist, Alexandra Aikhenvald, established the Research Centre for Linguistic Typology at Australian National University in Canberra. On 1 January 2000, the center relocated to La Trobe University in Melbourne.
Both Dixon (the Director of the centre) and Aikhenvald (Associate Director) resigned their positions in May 2008. In early 2009, R. M. W. Dixon and Alexandra Aikhenvald established the Language and Culture Research Group (LCRG) at the Cairns campus of James Cook University.
Dixon has written on many areas of linguistic theory and fieldwork, being particularly noted for his work on the Aboriginal languages of Australia. He has published grammars of Dyirbal and Yidiny as well as non-Australian languages such as Boumaa Fijian and Jarawara.
The vast majority of lingists who have studied Australian Aboriginal languages would consider Dixon and his views, to use a term he is fond of, "an isolate". Dixon's views began to depart "rather radically" from accepted views about four decades ago. Although Australian Aboriginal languages show greater similarities than the universally accepted Indo-European family of languages, Dixon in his "isolate" view rejects the concept of Pama–Nyungan languages. He also feels that the standard "family-tree" model of linguistic change is only applicable in some circumstances, thinking that a "punctuated equilibrium" model, based on the theory of the same name in evolutionary biology, is more appropriate for the Australian languages. Dixon puts forth his theory in The Rise and Fall of Languages. This work is not, however, widely accepted amongst Australianists.
He is the author of a number of other books including Australian Languages: Their Nature and Development Cambridge University Press and Ergativity.
In addition to scholarly works, Dixon also published, in 1983, a memoir of his early fieldwork in Australia titled Searching For Aboriginal Languages. The book provides a glimpse at linguistic fieldwork as it was done in that era as well as an interesting historical look at the appalling treatment of Aboriginal peoples of Australia that continued right into the 1960s. Additionally, Dixon is the co-author, with John Godrich, of the definitive discography of American prewar blues and gospel recordings, Blues and Gospel Records: 1890–1943.