Austrocactus coxii is a plant species in the genus Austrocactus from the cactus family (Cactaceae), indigenous to southern Argentina and southern Chile. It grows as short columnar stems up to 5 cm diameter, reaching 60 cm in height, with 6-10 tuberculate ribs. Central spines are hard, straight or slightly hooked, light brown to whitish and up to 4 cm long. Thin spines are interwoven and range from 6 to 10 in number; each is up to 1 cm long. Its diurnal red flowers are up to 3.5 cm in diameter.

Synonyms: 

• Austrocactus intertextus
• Echinocactus coxii
• Echinocactus intertextus
• Malacocarpus coxii
• Malacocarpus intertextus