The study investigated the Reliability of Senior Secondary Certificate Examination Multiple Choice Physics Questions from 216 – 2018 in Rivers State. The study made use of ex-post facto research design and was guided by one research question. Sample for the study was made up of 330 SSCE Multiple Choice Physics Questions of WAEC and NECO from, 2014 – 2018 consisting of a total of 550 Multiple Choice Items. In the course of determining the reliability indices of the tests, simple Random Sampling Technique was used to compose the Sample of 692 SS3 physics students from eight (8) Secondary Schools in five (5) Local Government Areas out of a population of all the 42,865 Senior Secondary three (SS3) students in Public Secondary Schools in Rivers State in the 2018/2019 academic session. From this sample of 692 SS3 students, only 665 students (i.e. 96.1%) participated in all the tests. Instruments for Data Collection in the study were past SSCE Multiple Choice Physics Question papers of WAEC and NECO of the years 2016 – 2018 which were already validated by these examination bodies. Data generated in the study were analyzed using Kuder-Richardson-20 statistical technique to verify the internal consistency reliability of each of the tests. Findings from the study revealed that the coefficients of internal consistency reliability of each of the instruments in the years (2016 – 2018) studied, was high among all the items, but higher among the items of SSCE Multiple Choice Physics Questions of West African Examinations Council (WAEC). Based on the findings, recommendations were made.