Abstract: This study examines the role of learned societies as publishers in Finland based on bibliographic information from two Finnish databases. We studied the share of learned societies’ peer?reviewed publication channels (serials with ISSNs and book publishers with distinct ISBN roots) and outputs (journal articles, conference articles, book articles, and monographs) in Finland. We also studied the share of learned societies’ open access (OA) publications. In 2018, there were 402 peer?reviewed publication channels in Finland. In 2011–2017, the number of peer?reviewed publications from scholars working in Finnish universities and published in Finland was 17,724. Learned societies publish around 70% of these channels and publications, mostly in the fields of humanities and social sciences. Learned societies in Finland focus on journal publishing, whereas university presses and commercial publishers focus on book publishing. In 2016–2017, 38.4% of the learned societies’ outputs were OA. This study concludes that Finnish learned societies play an integral part in national scholarly publishing. They play an especially important role in journal publishing, as commercial publishers produce only 2.6% of Finnish journals and book series, and only 1.4% of the journal articles from scholars working in Finnish universities.