Introduction: Dental arch morphology plays an important role in achieving a stable, beautiful, and functional outcome of orthodontic treatment. Dental arch form will vary among countries, region, race and ethnic background. Aim: To assess the dental arch form among south Indian population. Materials and methods: The study sample consisted of maxillary and mandibular dental casts of Indian individuals collected from various orthodontic centers. The selected dental casts were used to assess the dental arch form using arch form templates. The arch form was grouped into ovoid, tapered and square. Results: The ovoid, tapered and square dental arch form was seen in 66%, 24.5% and 9.5% of studied population, respectively. Conclusion: The ovoid was the most common dental arch form observed followed by tapered and square