Rumia is a town in the Pomeranian Voivodeship of Poland. Other meanings include:
Places Rumia (SKM stop) Rumia Janowo (SKM stop) Rumia (PKP station) Laghetto Rumia, a lake in San Roberto, Italy
Botany Rumia (plant), a genus of plants in the family Apiaceae
Other Rumia, a character in Embodiment of Scarlet Devil from the Touhou Project video game series Rumina, ancient Roman goddess who protected breastfeeding mothers