Characiopodium is a genus of green algae in the family Sphaeropleaceae.

[2] Characiopodium consists of cells that are attached to a substrate; the cell body is ellipsoidal, spindle-shaped, or cylindrical, with an adhesive disc.

The chloroplast is typically cup- or band-shaped, sometimes stellate and branched; chloroplasts bear one or rarely several pyrenoids.

Characiopodium reproduces asexually via zoospores with two flagella, more rarely with aplanospores.

[2] Morphologically, Characiopodium is very similar to Characium; however, Characiopodium is multinucleate while Characium is uninucleate.