Abstract: A golf course greens cup chemical protector can prevent chemical treatments from entering the golf greens cup, preventing staining and corrosion of the cup caused by the chemical treatments that otherwise would get inside the greens cup. When the greens cup chemical protector is placed over the cup prior to application of chemical treatments, the device prevents any spray chemical or granular chemical from entering the golf cup, making the task of cleaning the cup after chemical treatment no longer necessary. The greens cup chemical protector can include a handle for easy removal and placement. A bottom stabilization device can be smaller than the soil area above the cup to prevent the soil area above the cup from being altered or compromised when removing the device. The device can be made of a material resistant to the chemical treatments being applied.