Background: The year 2020 witnessed the emergence of covid-19 disease as a new notifiable infectious disease in Iraq and throughout the world. Little is known about the pattern of notifiable infectious diseases in Iraq during the first year of covid-19 pandemic. The aim of this paper is provide a description of the pattern of notifiable infectious diseases in Iraq during the year 2020, the first year of covid-19 global pandemic. Materials and methods: The available unpublished and published data including official documents and reports of health authorities about notifiable infectious disease in Iraq in 2020 were reviwed. Results: The population of Iraq in 2020 was estimated at 40.150.174 (20.284.823 males and 19.865.351 females). A total of 718393 cases of notifiable infectious disease including covid-19 disease were registered in Iraq in 2020. During the year 2020, 595291 cases of covid-19 disease were registered by the national and local health authorities in Iraq, while there were 123102 patients with notifiable infectious diseases other than covid-19 disease registered. Therefore, the registered cases of covid-19 disease was about 4.8 times more than the number of all notifiable infectious disease registered in Iraq during the year 2020. Scabies was the second most common notifiable disease after covid-19, and accounted for 6% of all notifiable infectious disease in Iraq in 2020. Chicken pox was the third most common notifiable disease, and accounted for 1.7%. Cutaneous leishmaniasis was the fourth most common notifiable disease and accounted for 1.1%, while tuberculosis, the fifth common notifiable disease accounted for 0.7%. Conclusion: Notifiable infectious diseases in Iraq were associated with a significant mortality during the year 2020, and that was because of the emergence of covid-19 disease as a new notifiable infectious diseases. Covid-19 disease, the most common notifiable infectious disease in 2020 changed the previously reported national mortality pattern. Contradictory, to the general belief that mortality associated with covid-19 disease was generally restricted to the older age groups, 117 children under the age of ten years died because of covid-19 disease in 2020. This number of childhood deaths suggests the need to consider vaccination of the younger age groups and to perform the relevant research.