Blood stream infections (BSIs) can lead to life-threatening sepsis and are globally associated with high morbidity and mortality. Early diagnosis plays a crucial role in managing BSI. Objective is to identify the pathogens causing blood stream infections and to know their antibiotic sensitivity pattern. This was a retrospective study of 1 year duration. A total of 1332 blood samples from clinically diagnosed cases of blood stream infections received in the microbiology laboratory were included in the study. Blood samples were processed and isolates were identified by standard biochemical tests and antibiotic susceptibility testing was done by Kirby Bauer disc diffusion methods as per CLSI guidelines. Out of 1332 blood samples received, 204 () samples showed growth and 1128 () samples showed no growth, with total percentage of culture positivity being . Among 204 positive cultures, 202 (99%) showed bacterial growth and 2 () were Candida spp. Bacteremia due to Grampositive pathogens was more common compared to Gram-negative pathogens. The present study provides information about pathogens responsible for blood stream infections and their antibiotic susceptibility. Antibiotic susceptibility pattern of isolates provides useful guidelines to clinicians in initiating empiric therapy and help in management of blood stream infections. | Study of microbiological profile and antibiotic susceptibility of blood stream infections in Tertiary care hospital