Objectives: To study the impact of the coronavirus disease 2019 pandemic, considering the physical distancing and schools closing, on the characteristics of admission and epidemiology on Brazilian PICUs. Design: Observational, multicenter, time series analysis, of electronic medical records from 15 PICU in Brazil. Data consisted of all March, April, and May PICU admissions from 2017 to 2020. Setting: Fifteen private PICUs in Brazil. Patients: Pediatric patients admitted to the PICU from March to May since 2017. Interventions: None. Measurements and Main Results: The period from March 11, 2020, to March 17, 2020, was considered the “intervention point” studied, corresponding to the suspension of school activities and the beginning of physical distancing in Brazil. During the pandemic period studied, there were 28 cases of coronavirus disease 2019 (one death). The mean age was higher (p = 0.000), the length of stay was shorter (p = 0.000), but mortality rates were similar among the periods (p = 0.36). The model estimated a reduction of 1,483 PICU admissions from March 2020 to May 2020. At the end of May, there was an estimated drop of 146.6 bronchiolitis admissions (95% CI, –242.8 to –50.3; p = 0.016); –71 asthma admissions (95% CI, –93.6 to –48.63; p = 0.000); and –59 community-acquired pneumonia admissions (95% CI, –74.7 to –43.3; p = 0.000) per period. The model showed no effect of the “intervention” (physical distancing) on hospitalization rates for epilepsy, diarrhea, sepsis, bacterial meningitis, or surgery when analyzed individually. When assessed together, the model estimated a reduction of 73.6 admissions (95% IC, –132 to –15.2; p = 0.43). Conclusions: The coronavirus disease 2019 pandemic strongly affected Brazilian PICUs, reducing admissions, length of stay, and the epidemiological profile. The measures to oppose the coronavirus disease 2019 pandemic may have prevented thousands of PICU hospitalizations across the country.