This thesis provides an analysis of the text of the Gospel of John in the writings of Origen of Alexandria (ca. 185-254). Two types of textual analyses, Quantitative and Group Profile, make up the core of this study. Such methods enable scholars to trace the history of transmission of the NT text, and this study confirms that Origen's text of John is a strong representative of the Primary Alexandrian text type, the purest form of the New Testament text. This thesis also provides a history of research of Origen's text of the New Testament, refines the critical methods used, and models the use of computer programs that increase the accuracy and efficiency of such studies. Finally, the conclusion places these data into historical context and answers several important questions, such as whether Origen changed his manuscripts of John upon relocation from Alexandria to Caesarea in 231.