Stackable electric fence wire insulators

A nestable and stackable electric fence insulator is provided having a latching structure by which a plurality of insulators of like construction are oriented, at least partially nested and connected to one another in a secure, space-efficient and organized manner. A plurality of like electric fence insulators, each including a body having a mounting end and an electric fence wire engaging end and including at least one latching structure on an upper surface and at least one latching structure on a lower surface, may be stacked one on top of another in a connected and nested relationship. An electric fence insulator package is also provided that includes multiple electric fence insulators secured to one another in a stacked arrangement by a latching structure formed on each insulator, and a packaging surrounding and containing the stacked arrangement of insulators.