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Background: Ventilator-associated pneumonia (VAP) continues to be an important cause of morbidity and mortality in ventilated patient. Prevention of VAP in critically ill patient is significant concern for health care team in intensive care units (ICUs). Knowledge on prevention of VAP would have a significant impact on patient outcome. Aims and Objectives: To assess knowledge on prevention of VAP in critical care providers and to find the association between knowledge on prevention of VAP and educational qualification and years of experience in ICUs. Settings and Design: The study was conducted in 5 different ICUs of Kasturba Hospital, Manipal, and using descriptive study design. Material and Methods: The study involved a purposive sample of 138 critical care providers. Critical care providers who were willing to participate in the study were included. Tools on demographic proforma and self-administered structured knowledge questionnaire on prevention of VAP were developed and content validity was established. The reliability of the tools was established.The data was categorized and analyzed by using descriptive and inferential statistics. The SPSS 16.0 version was used for the analysis of the study. Result: Majority 89.1% of the participant were 20-29 years, 63% unmarried 51.4% had completed diploma course and majority 81.2% were from nursing discipline. The study revealed that only 55.80% of subjects were having adequate knowledge on prevention of VAP based on median score. There was no significant association between knowledge score and educational qualification (÷²=0, p=0.833), years of experience in ICU (÷²= 2.221, p=0.329).