They include performances by Keane, Jess Glynne, Rag 'n' Bone Man, and Madness. All have rebooked for next year.
In a statement, Forestry England said: “The Government’s roadmap out of lockdown has made it clear that we cannot hold our Forest Live concerts this summer.
"We are extremely disappointed, but this is the best way to keep our valued customers safe, as well as the staff, volunteers, contractors and artists that make Forest Live possible.
"We look forward to welcoming Forest Live fans to see their favourite artists performing in the nation’s forests next year.
"We are delighted to confirm that all Forest Live 2021 headline acts have been able to reschedule all their performances and will be joining us in June 2022.
"All bookings remain valid for the 2022 dates and customers will be contacted by their point of purchase. Thank you for your patience and understanding.
"We would like to send our deepest apologies to everyone who was hoping to come to a Forest Live gig this summer.
"We can’t wait to experience the best live music in our beautiful forests with you next year and thank you very much for your continued support.”
Full listing of confirmed dates for Forest Live 2022 at Westonbirt: Rag‘n’Bone Man, Thursday, June 9; Keane, Friday, June 10; Madness, Saturday, June 11; and Jess Glynne, Sunday, June 12.
Further acts to be announced. For more details and booking go to www.forestryengland.uk/music