Walter David Taylor Powell (25 March 1831 – 23 December 1906) was an English mariner and paramilitary Native Police officer in the British colonies of New South Wales and Queensland. He played a significant part in the practical implementation of British colonial rule in the coastal areas of Queensland. His role as an officer in the Native Police was central in a number of important moments in colonial Queensland history including that of the brutal crushing of localised Aboriginal resistance after the Hornet Bank massacre, the foundation of Rockhampton and the creation of the Bowen settlement. He also had major contributions in the founding of Cardwell, the coastal and South Seas trade, and the British colonisation of the Torres Strait.