Margareta is a female given name used by Romanians and Swedes and others. Margareta may refer to:
- Margareta Alströmer – Swedish artist
- Margareta Andersson – Swedish politician
- Margareta Bengtson – Swedish soprano
- Margareta Brahe – Swedish lady in waiting
- Margareta Capsia – Finnish artist
- Margareta Cederfelt – Swedish
- Margareta Cederschiöld – Swedish tennis-player
- Margareta Kozuch – German volleyball-player
- Princess Margareta – Crown-Princess of Romania