Cliffs Pavilion is a theatre, sports, exhibition and concert venue located on Station Road in Westcliff-on-Sea, Essex, England, a suburb within the city of Southend-on-Sea. It is the largest purpose-built arts venue in Essex, and the largest capacity of any theatre in the East of England. In 2006, the operation of Cliffs Pavilion, along with the Palace Theatre, were handed to HQ Theatres by Southend-on-Sea Borough Council. HQ Theatres merged with Trafalgar Entertainment in 2021. In February 2022, the Cliffs played host to He Built This City concert, a tribute to the murdered MP for Southend West Sir David Amess.