In this thesis I describe aspects of referring expressions and referential practice in an English-lexified creole language spoken in the Ngukurr Aboriginal community, in the Northern Territory of Australia. Kriol has substrate influences from seven traditional Aboriginal languages. Dialects of Kriol are spoken in Aboriginal communities across the Top End of Australia; with estimates suggesting more than 20,000 people speak it as a first language. The language has a low status and in many contexts, such as health, medical and legal contexts, it frequently goes unrecognised as a legitimate language requiring interpreters. There is no comprehensive grammar of Kriol and as yet, there have been few in-depth studies into its structure and use. I investigate referential expressions in Kriol from various perspectives, using tools from a range of theoretical frameworks and research traditions, including descriptive linguistics, discourse analysis, information structure, and ethnopragmatics. The thesis provides an integrated description of how referential expressions are structured and how they are used in spontaneous talk to meet communicative needs. A further goal of this thesis is to demonstrate that there is significant continuity of referring strategies from Kriol's Aboriginal substrate languages. The data used in this study consists of a corpus of spontaneous discourse between two or more speakers, elicited material, and consultation with Elders on cultural issues relevant to language use. ... Each chapter contributes original description of the Kriol language. By combining a number of theoretical perspectives, the thesis offers an integrated description of the structure and function of referring expressions.