Caulerpa macrodisca

{{Short description|Species of seaweed}}

{{speciesbox

|name =

|status=

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|genus = Caulerpa

|species = macrodisca

|authority = Decne.

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Caulerpa macrodisca is a species of seaweed in the Caulerpaceae family.{{FloraBase|name=Caulerpa macrodisca|id=44551}}

The seaweed has a clumpy thallus that spreads to a width of around {{convert|12|cm|in|1}}, and is a medium to dark green colour.

The species is found in the subtidal areas tropical and subtropical waters in the western Pacific and Easter Indian oceans. In Western Australia, it is found along the coast in the Kimberley and south as far as the Mid West region.