It's been more than 80 years since the Tasmanian tiger, or thylacine, is believed to have gone extinct, but an enduring belief remains that the large carnivore still roams the state.

Now, a newly released government document has revealed sightings have been reported as recently as two months ago.

In the video above: Video shows 'Tasmanian tiger' sighting in Hobart

Tasmania's Department of Primary Industries, Parks, Water and Environment (DPIPWE) revealed there have been eight reported sightings of the Tasmanian tiger in the past three years.

The document includes detailed accounts of alleged close encounters with the mysterious predator across the northern and western regions of the state.

'Cat-like creature'

Last February, two visitors claimed an animal with a "stiff tail and striped back" wandered in front of their car at Corinna in the island's west.

The animal "turned and looked at the vehicle a couple of times" and "was in clear view for 12-15 seconds."

The report says both people in the car were "100% sure it was a thylacine".

Authorities say there is no evidence to confirm the thylacine still exists. Credit: AAP

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Another report, filed by a farmer in a cycling group, claims to have seen a "large cat-like creature" from a distance on the Lyell Highway.

He describes the animal as "as long as a Labrador with a thin tail pointing backwards".

Most recently, in July, a man just south of Hobart reported seeing a footprint that seemed to match that of the Tasmanian tiger.

'It's not impossible'

While the unconfirmed sightings may fuel the hopes of some, the thylacine is still widely considered to be extinct.

"(The department) occasionally receives reports of thylacine sightings," the Department of Primary Industries, Parks, Water and Environment said in a statement.

Chevron Right Icon 'There is no evidence to confirm the thylacine still exists.'

"While these are recorded, there is no evidence to confirm the thylacine still exists."

Biologist and wildlife expert Nick Mooney has for years reviewed thylacine accounts and apparent footage and images.

Chevron Right Icon 'There's nothing there that's concrete.'

"There's nothing there that's concrete," he told AAP of the newest reported sightings, adding it was "very unlikely" the animal is still out there.

The Tasmanian tiger was a carnivorous marsupial found in Australia and New Guinea until its extinction in the 1930s. Credit: Getty Images

"There's a lot more chronic searching these days with cameras and wildlife traps for other animals.

"It's not impossible but it gets less and less likely as time goes by."

The last captive tiger died on September 7, 1936 at the since-defunct Beaumaris Zoo.

Hunting, the introduction of dogs and the loss of habitat were to blame for its demise.

- With AAP