Fence post (1) having a point portion (2) and a principal portion (3). The principal portion is provided with connection elements to assemble a plurality of posts (1, 1'). The connection elements include assembly elements (81, 82) constituted by a female element and a male element. The male element is connected to the principal portion by means of a spacer element (83) connected to the principal portion. The assembly elements permit connecting head to tail two posts to form a pair of posts. The connecting elements also include through holes (71, 72) located on the principal portion. The through holes permit associating on connecting rods several pairs of posts.