The aim of the study is to analyze metalingual commentaries about the Latvian language on social media by addressee. The addressee to whom the content of the metalingual commentaries refers is recognized as primary. In this view, it is possible to distinguish the addressee in the first, second and third person. The empirical material is the original posts and comments of users published on social media Facebook and Twitter, which describe some aspect of the Latvian language used by themselves or others. It consists of approximately 400 items. The article explains the concept of metalingual commentary and provides an overview of research to date. Metalingual commentaries on social media are addressed to a third person, i.e., to others in a generalized or specific sense, to the second person as a communication partner, who can be language specialists or any other Facebook or Twitter user, and conditionally – to the first person in cases where the author of the post reveals his/her own language user experience. In this study, both negative and positive, rarely indifferent linguistic attitudes towards the Latvian language and the quality of its use have been found on social media.