Background: This study investigates hairline patterns among the Etche people in Rivers State, Nigeria, with a focus on the distribution and variation in hairline shapes, lengths, and widths. Materials and Methods: Using a descriptive research design, data were collected from 227 participants through anthropometric measurements using a digital vernier caliper and measuring tape, assessing patterns by gender, age, and marital status. Results and Discussion: The results revealed that the most common hairline type was straight-lined (34.4%), followed by bell-shaped (30.8%) and widow’s peak (30%). The least common hairline patterns were low and high hairlines, each observed in only 0.4% of participants. The average hairline length and width were 61.98 mm and 293.89 mm, respectively, with males displaying longer and wider hairlines compared to females. Singles also showed greater hairline dimensions compared to married individuals. Conclusion: No significant variation was found in hairline characteristics by religious affiliation. These findings contribute valuable anthropometric data on the Etche population and highlight the role of genetic and environmental factors in shaping craniofacial features. The study fills a gap in anthropometric literature and provides a foundation for further genetic, medical, and cultural studies on Nigerian ethnic groups.