The list of invasive alien species of Union concern is a regulatory list of invasive animals and plants whose introduction and spread within the European Union are strictly prohibited due to their significant negative impact on the natural environment, economy, or human health. First published in 2016, it has been updated multiple times and it currently consists of 114 species, of which 65 are animals and 49 are plants.
In 2016, following the EU Regulation 1143/2014 on Invasive Alien Species (IAS), the European Commission published a first list of 37 IAS of Union concern. The list was first updated in 2017 and comprised 49 species. Since the second update in 2019, 66 species are listed as IAS of EU concern. Since the third update in 2022, 88 species are listed as IAS of EU concern, although the final inclusion of three of these species has been deferred to 2024, and one to 2027. Finally, in 2025 further 26 species were added, so the list now contains 114 species.
The species on the list are subject to restrictions on keeping, importing, selling, breeding and growing. Member States of the European Union must take measures to stop their spread, implement monitoring and preferably eradicate these species. Even countries in which they are already widespread are expected to manage the species to avoid further spread.