An Aussie art gallery run by an eccentric millionaire is under fire for displaying a photograph which appears to show an act of bestiality.

The image, by the Ukrainian artist Oleg Kulik, is on display at Hobart's Museum of Old and New Art (MONA).

It shows a man apparently involved in a disturbing act with a dog.

MONA is a major Tasmanian tourist attraction with a history of controversies, such as a legal battle over its women's-only 'Ladies Lounge' which reached the Tasmanian Supreme Court, and an admission that Picasso paintings on display were faked by the museum owner's wife.

A visitor to the gallery, who wished to remain anonymous, told Daily Mail Australia that they were braced for confronting art during their visit but Kulik's photograph was a step too far.