This paper summarizes the 2013 revision (completed July 2014) of the WHO and UNICEF estimates of national immunization coverage (WUENIC). Globally, coverage for the third dose of DTP containing vaccine (DTP3)was 84% during 2013 with an estimated 111.8 million children vaccinated, an increase from 73% and 89.2 million children vaccinated during 2000; Coverage with the first dose of measles containing vaccine (MCV1) was 84% during 2013, an increase from 73% during 2000.