Rassa may refer to:
Rässa, a village in Saare County, Estonia Rassa, Piedmont, town in Italy Refugee Advocacy Service of South Australia Kalevi Rassa (1936–1963), Finnish hockey player Rassa or or rason, the word for a cassock in the Eastern Orthodox church Rassa, alternative spelling for the village of Rassau in Wales Rassa, variante spelling for the region of Raška in Latin sources
See also Rasa (disambiguation) Raška (disambiguation) Rassas, surname