A lack of knowledge and support for breastfeeding remains a challenge among nurses, leading to inconsistent information and practices for families. Observations from a non-Baby Friendly Hospital Initiative (BFHI) academic center in the Pacific Northwest indicate that nurses have inadequate knowledge and inconsistent practices in breastfeeding support. This quantitative quality improvement project aims to assess pediatric and neonatal nurses’ beliefs, attitudes, and perceived social norms about breastfeeding, as well as their intentions for behavior change and willingness to make adjustments.