Coralline means 'resembling coral' and may refer to:
Coralline algae, or corallines, red algae that produce calcareous deposits Less commonly, organisms that resemble coral, such as certain bryozoans, hydrozoans, or coralline sponges The calcareous material in coral reefs Coralline rock, produced by coralline algae Something having a red coral colour
See also Coraline (disambiguation)