This study psychometrically assessed lecturers’ morale and examined its influence on university students’ academic achievement in South-South Nigeria. Three research questions and three hypotheses guided the investigation. The study adopted a correlational research design using an ex post facto approach, since the variables were not manipulated. The population comprised 2,803 lecturers, from which a sample of 696 was selected through purposive and proportionate stratified sampling techniques. Data were collected using a validated, researcher-developed Lecturers’ Morale Questionnaire and a checklist for extracting students’ cumulative grade point averages (CGPA) from departmental records. The instrument was pilot-tested on lecturers in Delta State, and internal consistency reliability was established using Cronbach’s alpha coefficient. Both descriptive and inferential statistics were employed for data analysis. Means and standard deviations were used to answer Research Questions 1 and 2, while the coefficient of determination (R²) addressed Research Question 3. The hypotheses were tested at the .05 level of significance using independent-samples t-tests and Pearson’s product–moment correlation. The findings revealed that lecturers’ morale in South-South Nigeria was moderate, and no statistically significant difference was observed between the states in terms of morale levels. However, students in Edo State recorded significantly higher academic achievement than their counterparts in Bayelsa State. Contrary to expectations, the relationship between lecturers’ morale and students’ academic achievement in both states was not statistically significant. On the basis of these findings, the study recommends proactive engagement by the federal government and university authorities to address the structural causes of industrial actions, improve staff welfare, and enhance institutional stability as part of broader educational quality-assurance and performance-evaluation strategies.