The paper The Dialect of Srijem looks into the speeches of Croats in the western part of Srijem which is part of the Republic of Croatia. It explores and described the speeches of Bapska, Ilok and Tovarnik, which are located in the easternmost part of the Vukovar-Srijem County and belong to Srijem as a historical region. These local speeches are selected as the typical speeches of the Croatian part of Srijem. In this work, the speeches of the above sites are described synchronously from recordings of original speakers' free-speech and dialogue at the phonological, morphological, syntactic, formation and lexical levels. For each of the speeches there is an alphabetical glossary of lesser-known words and words whose meaning differs from that in the standard language. Srijem speeches are insufficiently explored and are considered to be part of various dialects or even languages, according to the dialectological literature. The aim of this paper was confirmed by the language analysis: the speeches of Bapska, Ilok and Tovarnik display common traits and can be classified into the same group of speeches. Furthermore, the paper provides evidence that these speeches are part of the Croatian Language Corpus, more specifically the Štokavian Slavonian dialect, whose characteristics were confirmed at all linguistic levels presented in this paper.