Ursini

Ursini may refer to:


 * Ursini (surname)
 * Ursini (Araneidae), a spider tribe in the subfamily Araneinae comprising only the genus Ursa
 * Ursini (Ursinae), a tribe in the subfamily Ursinae (the bears)
 * a section in the subgenus Rubus of the genus Rubus taxonomy
 * a small bipedal alien species in the Mythology of Stargate
 * Ursini, a prefix claimed by the Croatian noble family Blagajski, a cadet branch of the Babonić family