This study was conducted to determine the impact of student-faculty informal interpersonal relationships on the intellectual development and personal achievement of students attending the University of Lagos, Lagos, Nigeria. Specifically, the work of Pascarella and Terenzini was generalized with respect to the positive influence of student-faculty interactions on academic outcomes. Additionally, the work of Pascarella and Terenzini was extended with a sample of students at the University of Lagos, Lagos, Nigeria. Eight hundred subjects were selected for the study; 621 subjects responded. One survey instrument was used. Frequencies and multiple regression analyses were used. A series of studies on student-faculty interaction has shown a significant relationship between student-faculty informal contact and student outcomes. A large number of studies have also indicated that student outcomes are not independent of students' background. Therefore, pre-enrollment characteristics were controlled for this study.