Fibulia ramosa, or the columnar sponge, is a species of deep-sea demosponge from the southern hemisphere.

The columnar sponge grows upright, made up by somewhat fused pale orange-brown column branches.

The surface is covered by small cone-like projections and has a sandpapery texture.

[2] This species is found of the coasts of south-western Africa, as well as off the Prince Edward Islands.

[2] It is known to be one of the most common sponge species off the West Coast of South Africa,[3] where it has been found growing on soft sediments.