Brisbane's acting mayor has hit out at the inner-city's private car park operators for their "exorbitant" parking fees following an RACQ report that showed Brisbane had the most expensive short-term parking in Australia.

The RACQ released its report on off-street casual parking prices on Thursday, which revealed Brisbane had Australia's most expensive short-term parking.

The RACQ report reveals Brisbane has Australia's most expensive short-term parking. Credit:Harrison Saragossi

Brisbane acting mayor Adrian Schrinner said the city's motorists were being ripped off by private car park operators in the CBD.

"It's clear to see some of those prices are exorbitant and council's doing our part to try to lead the way in keeping the prices low," he said.