Chordariaceae is a family of brown algae.

Members of this family are may be filamentous, crustose with fused cells at the base, or they may be terete and differentiated into a central medulla and an outer photosynthetic cortex.

They have a sporphytic thallus usually aggregated to form a pseudo-parenchyma.

[1] As their general name suggests their pigmentation is brown.

This Phaeophyceae (or brown alga) article is a stub.