National Statistician

The National Statistician is the Chief Executive of the UK Statistics Authority, and the Head of the UK Government Statistical Service. The office was created by the Statistics and Registration Service Act 2007.

Following the retirement of John Pullinger, Sir Ian Diamond was announced as the new National Statistician in October 2019. In May 2025, Diamond announced he would be leaving his post in May 2025 due to "ongoing health concerns", although media reports speculated his decision was also driven by criticism of the quality and reliability of ONS data.

As of May 2025, the position is held temporarily by Emma Rourke, deputy national statistician for health, population and methods.