Advances in Formal Slavic Linguistics 2022 brings together a collection of 22 articles originating as talks presented at the 15th Formal Description of Slavic Languages conference (FDSL 15) held in Berlin on 5–7 October, 2022. The contributions cover a broad spectrum of topics, including clitics, nominalizations, l-participles, the dual, verbal prefixes, assibilation, verbal and adjectival morphology, lexical stress, vowel reduction, focus particles, aspect, multiple wh-fronting, definiteness, polar questions, negation words, and argument structure in such languages as BCMS, Bulgarian, Czech, Macedonian, Polish, Russian, Slovenian, Ukrainian, and Upper Sorbian. The wide range of topics explored in this volume underscores the diversity and complexity of Slavic languages. The contributions not only advance our understanding of languages belonging to the Slavic group but also offer fresh perspectives for linguistics more broadly.