A hybrid cucumber cultivar designated `Paraiso` is disclosed which is the first parthenocarpic slicing cucumber that also has intermediate resistance to powdery mildew, cucumber mosaic virus, cucumber vein yellowing virus and cucumber yellow stunting disorder virus. The invention relates to the seeds of hybrid cucumber cultivar `Paraiso`, to the plants of hybrid cucumber cultivar `Paraiso` and to methods for producing a cucumber plant, either inbred or hybrid, by crossing the hybrid cultivar `Paraiso` with itself or another cucumber cultivar. The invention further relates to methods for producing a cucumber plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other cucumber cultivars derived from the hybrid `Paraiso`.