Konstantin Dimopoulos (born December 20, 1954) is a social and environmental artist whose art practice is grounded in his sociological and humanist philosophies. He investigates globally relevant questions related to ecology and the human condition through his socio-environmental interventions and conceptual proposals, which argue for the potential of art as a means of social engagement and change. He is known for large public kinetic sculpture, The Blue Tree - an art installation about deforestation and Purple Rain - a textual and visual response to homelessness.