With the increasing digitalization in recent times, cloud servers and data centres have gained significant attention. Renewable energy sources (RES) and battery energy storage systems (BESS) are inherent components of green data centres. This has led to an increasing need to develop efficient power electronic solutions. In this paper, a multi-terminal smart transformer (MTST) is proposed for green data centre applications. The proposed system has the capacity to provide quality power both in the form of ac and dc at various required voltage levels. Moreover, the ac and dc terminals also offer the possibility of connecting alternative power sources such as RES or BESS. With such multiple features, the MTST is suggested as a one stop solution for efficient and green power delivery to data centres. All the power requirements of the data centre are provided by the MTST. Thus, there is a reduction in the number of power conversion stages which leads to lower losses. Simulation results are incorporated which verify the operation of the proposed MTST.