Tundra Swan, Cygnus columbianus, is a species of swan found in cropland, grassland and marine inlet and transitional water ecosystems.

Cygnus columbianus has a winter population size of 19500-24500 individuals in the EU27. The winter population trend in the EU27 is Decreasing in the short term and Uncertain in the long term.

The EU population status of Cygnus columbianus was assessed as Threatened, as the species meets one or more of the IUCN Red List criteria for threatened at the EU27 scale.