Two men have previously been charged with the alleged theft, where police say a 500kg pallet carrying 63,000 of the unreleased coins was pinched from a secure storage facility in July.
Given the collector's item coins were selling for $10 online, police have estimated the alleged haul was worth more than $600,000.
The 27-year-old woman was arrested on Tuesday morning in Sydney's west, and charged with three counts of aggravated break and enter while committing a serious indictable offence and disposing of stolen property.
She was refused bail and set to face Liverpool Local Court.
Police say the limited edition Bluey coins were stolen from a warehouse in Sydney's west. (HANDOUT/NSW POLICE)
It is the third arrest over the alleged theft by Strike Force Bandit, which carries the same name as the father of the show's titular blue heeler.
At least one more arrest could follow with police indicating a man spotted carrying a bag inside a bank at Revesby was a person of interest.
The coins were allegedly stolen from a western Sydney warehouse on July 12. They had a face value of $1, but were selling online for much more due to the immense popularity of the children's TV cartoon.
Police raided a Sefton property on July 31 and recovered 189 of the unreleased coins, but discovered the person selling them was a legitimate coin collector who had innocently come into their possession.
Unfortunately for the collector, who paid about $1.50 for each coin according to police, authorities seized his stash as proceeds of crime.
Bluey has become a global phenomenon after first airing in Australia on the ABC in 2018.
It follows the adventures of a young dog and her family living in suburban Brisbane.
21°C