Identity and Identification Dimitris Dimitriadis Abstract: In this thesis the question raised is whether, and, if so, to what degree, we can establish identity using linguistic means, such as names, descriptions, indexicals and demonstratives. First, we look into different ontological considerations; after having done that, we note that taking a stand in this discussion renders some theories of naming, descriptions and so forth, more plausible than others. I will argue that the Causal Theory of names is plausible and defend it against arguments presented by Evans. Also, the claims made by Donellan concerning definite descriptions (referential and attributive use, respectively) will be qualified. Indexicals and demonstratives will then be given an account of, and the conclusion will be that we can establish identity using descriptions and demonstratives, but not using names and indexicals.