The event marks the first major Radio 2 live music event in Scotland since BBC Music’s Biggest Weekend in May 2018 at Scone Castle, Perth.
In 2023, Radio 1’s Big Weekend took place in Camperdown Country Park in Dundee.
Thomas said: “Everyone in the Radio 2 presenter family is hugely excited to be heading to Stirling for our Radio 2 in the Park weekend.
“When they all found out together that we were going to Scotland, a cheer rang out across the room.
“We’re now busy building a line-up of some of the world’s most loved artists to perform live for tens of thousands of people in the park, as well as for millions of listeners and viewers at home or on the move.”
Last year, Stirling Council announced a £750,000 investment in the park, external to make it “Scotland’s leading sustainable outdoor events space.”
Cllr Susan McGill said: “We can’t wait to welcome fans and artists to our amazing city for an unforgettable celebration of world-class live music set to the stunning backdrop of Stirling Castle.
“While Stirling has a proud track record of successfully staging major music events, Radio 2 in the Park will be our biggest one yet.”
The park previously hosted the 2024 Summer Sessions festival, which was headlined by Tom Jones, Busted and Shania Twain.