Abstract The Baby Friendly Hospital Initiative (BFHI) was introduced in 1991 by UNICEF and the World Health Organization with the aim of endorsing and advancing breastfeeding. BFHI has established Ten Steps of Successful Breastfeeding as guidelines. The primary objective of BFHI policy is to advocate, safeguard, and bolster breastfeeding. Nurses hold a crucial responsibility in promoting and assisting breastfeeding, given their frequent interactions with mothers during prenatal and postnatal visits, where they can educate and advocate for breastfeeding. Therefore, it is imperative that nurses possess comprehensive knowledge of the BFHI's ten-step policy. Methods: The research employed a descriptive study design, focusing on the knowledge levels of nurses in pediatric and maternity departments at Ramaiah hospitals, Bangalore. A total of 200 nurses were chosen using a non-probability convenient sampling method. Data collection utilized a structured knowledge questionnaire sourced from the "WHO and UNICEF competency toolkit on ensuring competency of direct care providers to implement the Baby Friendly Hospital Initiative policy." This tool was validated by six experts from various institutions to assess nurses' understanding of the BFHI policy. Results: The findings of the study indicated that a majority of nurses, 131 (65.5%), demonstrated moderate knowledge, while 54 (27%) exhibited adequate knowledge, and 15 (7.5%) showed inadequate knowledge regarding BFHI policy. The analysis revealed a significant correlation between the level of knowledge and socio-demographic factors such as participation in BFHI education or training programs, awareness of BFHI policy, and the primary source of information (p<0.05). Conclusion: The study underscores that most nurses possess moderate knowledge of BFHI policy. Given that exclusive breastfeeding is crucial for infant nutrition and can reduce mortality and morbidity rates, it is essential to provide nurses with comprehensive training on implementing BFHI policy. This training is vital to empower nurses in their roles of preparing, educating, encouraging, and supporting mothers to breastfeed, thereby ensuring infants receive optimal nutrition for their early growth and development.