Aspidites melanocephalus, commonly known as the black-headed python, is a species of snake in the family Pythonidae (the python family). The species is native to Australia. No subspecies are currently recognized.
Adults grow to an average of 1.5–2 m (4.9–6.6 ft)in total length, but can grow to a maximum total length of 3.5 m (11 ft). The body is muscular with a flattened profile, while the tail tapers to a thin point.
The top of the head is covered by large symmetrical scales. The dorsal scales, which are smooth and glossy, number 50-65 rows at midbody, while there are 315-355 ventral scales. The tail has 60-75 mainly single subcaudal scales and the anal scale is single. The posterior subcaudals tend to be divided, often irregularly.
The color pattern consists of shades of black, dark grey, brown, gold, and cream arranged in a striped or brindled pattern. The belly is light-coloured, flecked with darker spots. The head is shiny black that also extends down the neck and throat for several inches.