Bullnettle (also written "bull nettle", "Bull Nettle" or "bull-nettle") is a common name for several plants and may refer to:
Cnidoscolus stimulosus (Spurge nettle), a plant of the spurge family (Euphorbiaceae) Cnidoscolus texanus (Texas bullnettle), another Euphorbiaceae Cnidoscolus urens Solanum carolinense (Carolina horsenettle), a plant of the nightshade family (Solanaceae) Solanum elaeagnifolium (Silver-leaved nightshade), another Solanaceae