Brian Carroll
- Foilsithe: 12 Meán Fómhair 2019
- An t-eolas is déanaí: 21 Eanáir 2025

Brian Carroll has been assigned responsibility at Assistant Secretary level over the Environment function (Climate, Air Quality, EU and International Policy) in the Department. Brian has specific responsibility for all environmental policies in areas such as climate action, air quality, nuclear and radiological matters, environmental policy and research, as well as engagement at EU and UN levels on environmental issues.