Background: Assessment of the horizontal relationship of the teeth and jaws is an important component of many orthodontic assessment. The present study was conducted to assess effect of overjet on the maxillary and mandibular morphology. Materials & Methods: 80 subjects in age range 18 to 24 years of both genders were divided into 4 groups of 20 each. Group I (positive) were those with overjet more than +2 mm. Group II (normal) were those overjet >1 mm but less than 2 mm. Group III (edge-edge) were those with overjet more than –1 mm but less than 1 mm. Group IV (negative) were those with overjet less than -1mm. Overjet was measured as a distance between the incisal tip of the maxillary central incisor and the buccal surface of the mandibular central incisor parallel to the occlusal plane. Standard Lateral cephalograms were taken. Linear and angular measurements such as maxillary anterior alveolar and basal height (MxAABH), maxillary anterior depth (MxAD), maxillary posterior alveolar and basal height (MxPABH), anterior nasal spine-posterior nasal spine (ANS-PNS), mandibular anterior alveolar and basal height (MdAABH), mandibular posterior alveolar and basal height (MdPABH), Condylion-gonion (Cd-Go), Condylion-gnathion (Cd-Gn), gonion-gnathion (Go-Gn), symphysis height (SH), symphysis depth (SD), ramus width (RW), antegonial notch depth (AND) and gonial angle was measured. Results: Group I had 8 male and 12 females, group II had 7 male and 13 female, group III had 9 male and 11 female and group IV had 10 male and 10 female. The mean MxAABH was 30.2, 24.2, 22.3 and 26.5, MxAD was 17.6, 15.4, 16.1 and 16.5, MxPABH was 19.0, 19.2, 19.1 and 20.3, ANS-PNS was 53.6, 58.4, 56.2 and 49.0, MdAABH was 40.2, 35.4, 37.2 and 37.6, MdPABH was 29.3, 29.5, 29.9 and 28.3, Cd-Go was 61.2, 65.2, 65.4 and 62.8, Cd-Gn was 123.4, 128.2, 129.0 and 133.2, Go-Gn was 79.2, 83.2, 83.5 and 83.9. SH was 35.4, 37.5, 35.7 and 29.4, SD was 18.4, 17.7, 18.2 and 15.4, RW was 34.3, 33.4, 34.8 and 24.3, AND was 1.3, 2.0, 1.4 and 2.8 and gonial angle (deg) was 125.4, 123.6, 121.6 and 135.4 in group I, II, III and IV respectively. The difference was significant (P< 0.05). Conclusion: Results showed that overjet was related to morphological feature in both the jaws. Key words: Angular measurements, Linear, Overjet