Ragnhild Synnøve Bergheim (born 22 November 1962) is a Norwegian politician from the Labour Party (Ap). She was mayor of Lørenskog municipality from 2015 to 2023.
Bergheim became mayor of Lørenskog municipality after the 2015 Norwegian local elections and was re-elected in 2019. Prior to this, she had been deputy mayor since 2007. She was elected to the Storting in the 2025 Norwegian parliamentary election.
She previously worked as a nurse at the company AstraZeneca.