Antibiotics are being used irrationally all over the world. Meropenem, which is a new and expensive antibiotic, is also being used irrationally which lead to the emergence of resistant strains and consequently failure of therapy and high costs of morbidity. Data regarding this issue in Iraq is deficient. This observational study showed the pattern of meropenem injection using in Iraqi public hospitals. A total of (9736) records of in-patients in the years 2015-2016 were studied from secondary and tertiary hospitals in different governorates in Iraq. The upmost indication were it was used was septicemia in about 46% of the cases, after which came skin and soft tissue infections in about 16% of the cases. There were about 5% of the cases which composed not approved indications. Culture and sensitivity was done in about 9% of cases only; causes of which should be investigated separately Ministerial regulations for the use of carbapenems in general were set to be followed, however, these regulations should be updated according to data in this study.