Lottery officials have asked players to check their tickets, with $7.4 million worth of division one prizes unclaimed in Queensland.
One of the tickets won $1 million and was bought at News Worx Victoria Point in July 2019.
Another $369,000 is waiting to be claimed from a ticket purchased at Nextra Capalaba Park News in November 2017.
Lotto players in Queensland have seven years to claim their winnings, and Lotto spokesperson Lauren Cooney said players should keep their eyes out for any old tickets.
"With more than $7.8 million waiting to be united with their rightful winners, it's worth checking any old lottery tickets you might come across," she said.
Ms Cooney said winning tickets could be hiding anywhere around the Redlands.
"From old shopping bags and fridge doors, to car gloveboxes and sock drawers, Aussies certainly have a history of storing winning lottery tickets in weird and wonderful places," she said.
"We've had past division one winners come forward months and even years after the draw after finding an old ticket in the back of a drawer, in the central console of their car, and at the bottom of their handbag."
Players can check their tickets at any licensed lottery outlet or online at thelott.com or The Lott app.