Abstract
This study examined the causes and effects of mass failure in English language in the secondary schools in Ogun state. It employed a survey design. The study used a five-point likert scale questionnaire, which contains a total of 25-items, as a major instrument. In all, three hundred and eighty-seven (387) students and fifteen (15) English Language Teachers made up the sample for the study, giving rise to a total sample of four hundred and two (402). Arithmetic mean and standard deviation were the major statistical tools used for the data analysis. A reliability co-efficient using this conbach alpha was used. The result showed that non availability of standard and functional instructional materials, workshop and textbooks, lack of tools and equipment, poor teacher qualification, insufficient time, poor funding and nonchalant attitude of the government towards education are some of the causes and effects of mass failure in English Language. The study recommended among other things, that the Federal and State Ministries of Education should ensure that standard and functional workshops are built in all secondary schools across the nation, qualified teachers and ample time should also be provided to aid students.