Abstract Background The quick Sequential Organ Failure Assessment (qSOFA) score is a bedside prompt that may identify patients with suspected infections who are greater risk for poor outcome in the intensive care unit (ICU). Objectives To assess the impact of qSOFA score on the outcome of patients in ICU with respiratory tract infection. Patients and Methods This Observational prospective study study carried out at ICU department of Ain Shams University Hospitals and Al Mahala Chest Hospital during the period from 1 February 2020 till March 2021 and included 122 patients presented by respiratory infection. Diagnosis of infection based on clinical, laboratory, radiological and/or microbiological evidence in accordance with guidelines for diagnosis of infection. All patients subjected to full history, physical examination, full laboratory tests (including arterial blood gas, complete blood cell with differentiation, international normalized ratio, kidney function tests, liver function tests, random blood sugar, C-reactive protein, erythrocyte sedimentation rate, serum sodium and serum potassium), chest X-ray and/or computerized tomography of chest, sputum cytological analysis and sputum culture. Measurement of qSOFA done in all patients. Results The median of qSOFA score in survivors was 0 while in nonsurvivors 1 at admission and after 48 hours with a significant difference between both groups. In overall patients qSOFA cutoff 1 has sensitivity and specificity 70% & 80.37%, respectively. Conclusion The qSOFA scores were associated with in hospital mortality, hospital admission, ICU admission, and hospital length of stay in patients likely to be admitted both with and without suspected infection, qSOFA is an easy tool that can be used to predict outcomes.