A splice tray for optical fiber splices comprising: a base having a splice area for retaining optical fiber splices and a routing area for passage of optical fibers from and towards the splice area; splice holders arranged on the splice area, each splice holder having holding members configured to hold optical fiber splices; retaining arrangements arranged on the base and configured to retain the splice holders; each retaining arrangement comprises sliding guides projecting from the base and configured to receive and retain one or more splice holders; and each splice holder is slidable relative to the sliding guides along a sliding direction transversal to the base between a retracted position, in which the splice holder is proximate to the base and an extracted position in which the splice holder is spaced apart from the base along the sliding direction.