A fence post assembly (120) comprising a fence post (121) and at least one keeper (122) for holding a fencing wire (2) relative to the post (121). The keeper (122) is movable between a holding position in which the wire (2) is held relative to the post (121) and a release position in which the wire (2) may be released from the post (121). The keeper (121) comprises a slot (123) extending within the post (121) for receiving the wire (2) and a retainer (124) connected to the post (121) that is pivotable between the holding and release positions, wherein in the holding position the retainer (124) obstructs the slot (123).