Brachyopterella is a genus of prehistoric eurypterid classified as part of the Rhenopteridae family.

Two species, both from the Silurian period, are known; B. pentagonalis from Norway and B. ritchei from Scotland.

[1] Brachyopterella was a small stylonurine eurypterid with a pentagonal carapace with little to no marginal rim and a concave base.

The eyes were oblique, very long, banana-shaped, close-set and placed anteriorly on the carapace.

Axes converged and crossed a short distance in front of the eyes.