Cycas arenicola is a species of cycad in the genus Cycas, native to Australia, in the far north of Northern Territory in the basin of the upper East Alligator River in Arnhem Land. It grows in Eucalyptus woodlands on highly siliceous soils (sandstone derived). They thrive in open situations. The female cones open, with sporophylls 15-20 cm long, grey with orange hairs, each with 4-6 ovules. Margins toothed, with bright orange sarcotesta when ripened. The male cones are solitary, spindle shaped, 25 cm long and 9 cm diameter.