This article gives an insight into the vocabulary of one of the sub-dialects of the Central dialect of the Latvian language – namely, the sub-dialect spoken in Bārta, a place in South-Western Kurzeme. The focus of the article is on those lexical units of the Bārta sub-dialect that are included in one of the most important works of Latvian linguistics – the Latvian Language Dictionary (1923–1932) and it’s Appendix (1934–1946), compiled and published by Kārlis Mīlenbahs, Jānis Endzelīns and Edīte Hauzenberga. The material analyzed here is taken from the electronic version of the Latvian Language Dictionary (www.tezaurs.lv/mev). The vocabulary of the Bārta sub-dialect is represented there by approximately 660 words, among which there are 330 nouns, 253 verbs, 38 adjectives, 30 adverbs, 7 particles, 2 interjections, 2 conjunctions, and 1 preposition.