Abstract Among varied syntactic and semantic functions of the dative case in Latvian, the attitude dative or dativus ethicus is a less studied one. As an optional pronominal clitic, it serves two broad functions: first, it expresses the speaker’s authority and affectedness of the speaker or the addressee in a speech-act situation, and second, it expresses the speaker’s stance towards the contents of the utterance. In terms of register, the attitude dative normally occurs in informal interaction. The current study examines three basic types of attitude datives in Latvian and their functions in different syntactic constructions and speech acts. The examples are extracted from corpora as well as Latvian fiction and everyday speech. It follows from the examples that the attitude dative has different meanings in certain speech acts and syntactic constructions. The attitude dative is used in giving orders, expressing prohibition and threats, as well as showing disagreement, disappointment, and regret. The study suggests that the attitude dative tends to be used in lexicalized syntactic constructions (set expressions) including specific lexemes and grammatical forms, and its functions are emphasized with particles.