Code-Switching and Code-Mixing in Pakistani English Novels This study examines the issue of code-switching and code-mixing in written medium that is Pakistani English novels on the grounds that characters, speech communities, and context presented by Pakistani competent novelists are the representation of real life people, speech communities, and contexts. This shows that the use of code-switching and code-mixing by the characters in their dialogues/conversations is authentic. By using content analysis as a method and applying the theories (frames) of types, reasons and context of situation given by Hoffmann (1991), Saville-Troike (2003) and Wallwork (1978), this study investigates the types, reasons and context of code-switching and code-mixing found in the dialogues/conversations of characters. For this purpose, three famous Pakistani English novels are selected which are Moth Smoke (2000), The Crow Eaters (2005) and Salt and Saffron (2000). The theoretical framework for analysis consists of six types of code-switching and code-mixing, eleven reasons of code-switching and code-mixing and five ingredients of context of situations. The results show that the sociolinguistic theories of code-switching and code-mixing presented by Hoffmann (1991) and Saville-Troike (2003) and context of situation ingredients given by Wallwork (1978) are applicable to data in hand. The findings also reveal the fact that most of the characters in Pakistani English novels use intra-sentential code-mixing in their conversations. In this instance, the main reason for them to do code-switching or code- mixing is to express group identity which happens to be a common practice in informal context. The analysis of the data exemplifies some new categories apart from the set theoretical framework which opens new dimensions for future research.