This volume presents the proceedings of the 7th edition of the annual conference series on CMC and Social Media Corpora for the Humanities (CMC-Corpora2019). This conference series is dedicated to the collection, annotation, processing, and exploitation of corpora of computer-mediated communication (CMC) and social media for research in the humanities. The annual event brings together language-centered research on CMC and social media in linguistics, philologies, communication sciences, media and social sciences with research questions from the fields of corpus and computational linguistics, language technology, text technology, and machine learning. The 7th Conference on CMC and Social Media Corpora for the Humanities was held at IDHN (Institute of Digital Humanities) on September 9th and 10th, in Cergy-Pontoise, France. This volume contains extended abstracts of the papers (14), and abstracts of posters presented at the event (4). The program also includes two invited talks: one keynote talk by Marty Laforest (Université du Québec à Trois-Rivières, Canada), and one by Julien Velcin (University Lumière Lyon 2). The contributions in these proceedings cover a wide range of both topics and languages. Some contributions focus on standards and best practices of CMC corpora, others on the pragmatics of CMC, others on geographic linguistic variation, or applied linguistics, with discursive, semantic, or computational point of views.