Globally, considerable number of students experienced test anxiety. This study tested the efficacy of the FEAR—model of cognitive behavioural therapy in treating test anxiety in Chemistry students. We adopted a randomized pretest-posttest trial experimental design. A total of 153 participants served as the study sample. Two instruments were used for data collection. The participants were administered the instruments at three different times. Treatment manual for test anxiety was employed to deliver the therapy. Data analysis was completed using analysis of covariance. The researchers found that FEAR-model of CBT had a significant effect on participants’ test anxiety scores as measured by Cognitive Test Anxiety scale, German Test Anxiety Inventory, and Beck Anxiety Inventory at posttest and follow-up stages. The researchers concluded that FEAR—Model of Cognitive Behavioural Therapy is efficacious in the reduction of test anxiety among undergraduate Chemistry students in public universities.