C. silvestrii

C. silvestrii may refer to:
 * Campodea silvestrii, a diplura insect species
 * Camponotus silvestrii, a carpenter ant species
 * Catalpa silvestrii, (Pamp. & Bonati) S.Y.Hu, a flowering plant species in the genus Catalpa
 * Ceratitis silvestrii, Bezzi, a fruit fly species in the genus Ceratitis
 * Cyclops silvestrii, Brian, 1927, a freshwater copepod species in the genus Cyclops