The LIdioms dataset is a multilingual RDF representation of idioms containing five different languages. The data set was crawled and integrated from various sources. For assuring the quality of the presented data set, all idioms were evaluated by at least two native speakers. We designed the dataset to be easily usable in natural-language processing applications with the goal of facilitating the translation content task. In particular, the dataset uses the best practices in accordance with Linguistic Linked Open Data Community (LLDO).