Lucinda "Lucie" May Green (born c. 1975) is a British science communicator and solar physicist. Green is a Professor of Physics and a Royal Society University Research Fellow (previously the Royal Society Dorothy Hodgkin Fellow) at Mullard Space Science Laboratory (MSSL) of the University College London (UCL). Green runs MSSL's public engagement programme and sits on the board of the European Solar Physics Division (ESPD) of the European Physical Society and the advisory board of the Science Museum.