Background: Racial/Ethnic disparities in breastfeeding practices exist despite strong evidence for significant health benefits of breastfeeding for the mother-newborn dyad. Breastfeeding intentions are known to predict breastfeeding practices at hospital discharge and breastfeeding retention in the long-term. Interventions during postpartum hospitalization can help mothers achieve breastfeeding intentions and reduce racial/ethnic gaps in breastfeeding on discharge. This study aims to identify racial/ethnic disparities in meeting intentions to exclusively breastmilk feed (EBMF) on hospital discharge. Methods: This was a retrospective cohort study of mothers who intended to EBMF, and their newborns delivered at term at a single academic medical center during 2022. The primary outcome was EBMF at discharge. Results: Participants included non-Hispanic Black (NHB) (N=96), Hispanic (N=97) and non-Hispanic white (NHW) (N=955) mothers who intended to EBMF. Mothers who identified as NHB (40.6%) or Hispanic (64.9%) were significantly less likely to EBMF compared to NHW (87.5%) mothers (OR=0.14, 95%CI 0.08, 0.23 and OR=0.37, 95%CI 0.22, 0.61, respectively) at newborn hospital discharge. Rurality, insurance type, gravidity, parity, gestational diabetes and birth weight were not associated with breast feeding choice/practices at discharge, but increasing age was associated with an increased likelihood of EBMF (OR=1.07, 95%CI 1.03, 1.11), as was NICU admission (OR=2.93, 95%CI 1.18, 7.31). Cesarean birth was associated with decreased likelihood of EBMF (OR=0.57, 95%CI 0.38, 0.85) Conclusion: Significant racial/ethnic disparities in EBMF at hospital discharge exist among those who intended to EBMF, which are not explained by differences in other examined covariates.