This paper investigated the influence of Electronic Medical Records (EMR) use on job performance of health records officers in tertiary hospitals in North-Central Nigeria. The study employed survey research design with a total population of 211 health records officers as participants. A sample size of 136 health records officers was determined using stratified proportionate sampling technique. Data were collected with a questionnaire tagged data collection on use of Electronic Medical Records (EMR) and job performance of health records officers, reliability coefficients of job performance is (0.91) that of organizational policies is (0.84) while the extent of use of EMR coefficient is (0.85). Data were analysed using descriptive and inferential statistics. Findings showed that the level of job performance of health records officers was very high (x̅=3.58). The overall extent of use of electronic medical records (EMR) was very high (x=3.65). Use of EMR significantly influenced job performance of health records officers (R2 = 0.117, β = 0.351, t(128) = 4.259,p<0.05). The study concluded that use of EMR plays crucial roles in the job performance of health records officers in tertiary hospitals in North-Central Nigeria. The study recommended that the management of tertiary hospitals should sustain the current level of job performance and extent of EMR use and address the identified challenges.