Claire Louise Perry O'Neill is a British businesswoman and former politician who is the managing director for climate and energy at the World Business Council for Sustainable Development, having previously served as Minister of State for Energy and Clean Growth from 2017 to 2019. Formerly a member of the Conservative Party, she was Member of Parliament (MP) for Devizes in Wiltshire from 2010 to 2019.

The minister of state for energy security and net zero is a mid-level position in the Department for Energy Security and Net Zero in the Government of the United Kingdom. It is currently held by Justin Tomlinson.