Blackmore River Conservation Reserve is a conservation reserve in the Northern Territory of Australia. It is located approximately approximately 25 kilometres (16 mi) south of Darwin and lies along a 6.5 kilometres (4 mi) stretch of the Blackmore River from which it takes its name. The threatened plant species, Cycas armstrongii is found within the reserve. Other species found in the area include Grevillea longicuspis and the orchid Dendrobium dicuphum.