Connells Lagoon Conservation Reserve also known as Dalgajini is a conservation reserve in the Northern Territory of Australia. It is situated approximately 260 kilometres (162 mi) north east of Tennant Creek and 350 kilometres (217 mi) south east of Elliott on the eastern boundary of Brunette Downs Station. The area is found in the middle of the Barkly Tableland and was established primarily to conserve Mitchell grassland communities.