This study examined teacher-student ratio and academic performance of students in public secondary schools in Akwa Ibom State, Nigeria, against a backdrop of rapid Universal Basic Education-driven enrolment growth that has left many urban schools operating well above the national policy benchmark of 1:35 to 1:40. Guided by three objectives, the study ascertained the extent of teacher-student ratio conditions, examined the relationship between teacher-student ratio and academic performance, and assessed the extent to which infrastructural and staffing-related challenges hinder effective teacher-student ratio management. Anchored on class-size-and-achievement theory and an education production-function perspective, the study adopted a descriptive survey design. A population of 220 teaching staff drawn from three education zones (Uyo, Eket and Ikot Ekpene) was reduced to a sample of 140 using the Taro Yamane formula, and data were collected with a structured, validated, four-point Likert-scale questionnaire whose reliability was confirmed through Cronbach's alpha (α = .83). Descriptive statistics (mean, standard deviation, percentages) and chi-square tests of independence were applied at the .05 level of significance using SPSS version 27. The findings, which are from primary field data, show a statistically significant relationship between teacher-student ratio and academic performance (χ² = 11.568, df = 1, p = .0007), and a further statistically significant relationship between infrastructural and staffing-related challenges and effective teacher student ratio management (χ² = 10.637, df = 1, p = .0011), with respondents reporting the greatest strain in conducting regular oral questioning and returning marked work promptly, and the most pressing challenge being enrolment growth that consistently outpaces available teaching staff. The paper concludes that teacher-student ratio remains a meaningful, statistically detectable correlate of academic performance in Akwa Ibom State's public secondary schools, and that this relationship is itself conditioned by funding and staffing-recruitment constraints, and recommends prioritised teacher recruitment, more equitable staff deployment, and strengthened monitoring of national policy ratio benchmarks.

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