Cactus may refer to:
- Cactus, a plant in Plants vs. Zombies and Plants vs. Zombies 2.
- Cactus, a playable plant class in Plants vs. Zombies: Garden Warfare and Plants vs. Zombies: Garden Warfare 2.
- Template:PvZHLink, a plant fighter in Plants vs. Zombies Heroes.
- Cactus, a plant in Plants vs. Zombies: All Stars.