Background: Oral health entails practicing and maintenance of good oral hygiene. It is an integral part of general health. Aim: To determine the oral health behavior among dental, medical and nursing students of the Lagos State University College of Medicine, Ikeja Lagos. Nigeria. Materials and Methods: The survey was conducted among dental, medical and nursing students of Lagos State University College of Medicine, Ikeja, using a self-administered structured questionnaire, which assessed their oral health attitude and practices. The obtained data was analyzed using the Statistical Package for the Social Sciences version 21 software. Results: One hundred and thirty participated in the study. More than twenty-eight percent (28.5%) brush twice a day, 27.7% use dental floss regularly, and only 47.7% use water to rinse after meals. About 56.9% of the medical students have never been to a dentist. A few, 7.7% have undertaken the every 6 months dental visits and 77.7% agreed that oral hygiene was necessary for good general health. The study also showed that female students (both dental and medical) showed better oral health practices than male students. Conclusion: Although dental students exhibited better practice towards oral health, but there was a lack of adequate attitude among them. Further emphasis on oral health is necessary in undergraduate training to improve the oral health attitude and practice among dental, medical and nursing students as they will act as role models for oral health education among individuals and community at large.