Illocutionary acts cover the intention behind an utterance and analyze the speaker’s intent and the effect on the listener, this research aims to analyze the types of Illocutionary acts and which most dominant types of illocutionary acts used by Jason Grace in the novel “The Lost Hero”. The research used John R. Searle’s classification for the illocutionary act which consisted of representatives, directives, commisives, expressives, and declarations. This research used qualitative research with descriptive as a method. The object of this research is a novel by Rick Riordan entitled “The Lost Hero”. The instrument used for this research is content analysis mainly focused on analyzing Jason Grace's utterances in the novel. Furthermore, data analysis was conducted by the researcher by reading the novel, writing Jason Grace's utterances, and separating the utterances based on John R. Searle’s classification. The result of the research found that there are 5 types of illocutionary acts Jason Grace used in “The Lost Hero” novel. These utterances consisted of 10% declarations, 14% representatives, 26% expressives, 44% directives, and 6% commisives. The frequently used types of illocutionary acts Jason Grace used are directives utterances with commisives being the least used. Furthermore, this study found that Jason Grace's character in the novel used 5 types of illocutionary from John R. Searle’s classification
