Margaretta is a genus of bryozoans belonging to the family Margarettidae.

The genus has cosmopolitan distribution.

Species:

Margaretta amitabhae Margaretta amplipora Margaretta aquitanica Margaretta barbata Margaretta bipartita Margaretta buski Margaretta cereoides Margaretta chuakensis Margaretta coeca Margaretta congesta Margaretta fallax Margaretta filiformis Margaretta fusiformis Margaretta gracilior Margaretta gracilis Margaretta guhai Margaretta hariparensis Margaretta levinseni Margaretta longicollis Margaretta nodifera Margaretta opuntioides Margaretta parviporosa Margaretta pentaceratops Margaretta punctata Margaretta rajui Margaretta tenuis Margaretta triplex Margaretta turgida Margaretta vicksburgica Margaretta watersi

References