The focus of this thesis is the description and analysis of clausal complementation in Sundanese, an Austronesian language spoken in Indonesia. The thesis examined a range of clausal complement types in Sundanese, which consists of (i) yén/(wi)réhna 'that' complements, (ii) pikeun 'for' complements, (iii) sangkan/supaya/ngarah/sina 'so that' complements, (iv) raising complements, (v) crossed control complements, and (vi) nominalizations. This varied set of complement structures display distinct properties in terms of the sort of elements admitted in the complements. The theoretical aspect of the thesis is the examination of two important generalizations: (i) that complementation is a universal feature of human languages (Noonan 1985, 2007); and (ii) the well-accepted precept that finiteness plays a role in the world's languages. This thesis provides evidence that Sundanese evinces (syntactic) complementation and that any claim to the contrary is unfounded. In terms of finiteness, despite the lack of overt morphological manifestations of finiteness, the thesis argues that finiteness seems to be at work in Sundanese and that it operates as it does in other languages to account for the distribution of overt subjects. In addition, the body of data presented herein is also germane to a host of other theoretical issues, especially with regard to Austronesian languages. The first is inclusion