Butterweed is a common name for several plants and may refer to:
Conyza, a genus native to eastern Asia and North America Packera glabella, a species native to central and southeastern North America Packera layneae, a species native to California Packera werneriifolia, a species native to the western United States Senecio ampullaceus, a species native to Texas Senecio flaccidus, a species native to central and southwest North America Senecio mohavensis, a specie native to the southwestern United States and northwestern Mexico Senecio triangularis, a species native to temperate regions of North America