Barbarin may refer to:
- Barbarin, Navarre, a town in Navarre, Spain
- the Tunisian Barbarin, a Tunisian breed of fat-tailed sheep
- The natural plant constituent 5-phenyl-1,3-oxazolidine-2-thione, a breakdown product of a glucosinolate and named from its first isolation from the plant Barbarea vulgaris R. Br.
See also: