Neonatal septicemia remains one of the most important causes of mortality despite considerable progress in hygiene, introduction of new antimicrobial agents and advanced measures for early diagnosis and treatment. Septicemia in neonates refers to generalized bacterial infection documented by positive blood culture in the first four weeks of life. To isolate and identify the bacterial etiologic agents responsible for neonatal sepsis and determine the antibiotic susceptibility pattern of isolates in a tertiary care hospital in Greater Noida, Western . Blood samples from the suspected infants were collected and processed in the bacteriology laboratory. | Bacteriological profile of neonatal septicemia in a tertiary care hospital Western . India