The aim of this article is to examine the discourse of Icelandic compulsory school teachers on inclusive education. From 1974 and onwards, the education policy in Iceland has been towards inclusion, and Iceland is considered to be an example of a highly inclusive education system with few segregated resources for students with special educational needs. In particular, the article focuses on what characterises and legitimises teachers' discourse on inclusive education, the contradictions in the discourse and how teachers have involved themselves in the process. We use the approach of historical discourse analysis to analyse the discourse as it appears in interviews with teachers and media articles on education as well as in key documents issued by the Parliament. The article provides an insight into the complexities of this topic and draws attention to underlying issues relevant to inclusive education.