Self-efficacy is important in supporting breastfeeding behaviors and enhancing breastfeeding practices. This study aimed to explore research trends, identify knowledge gaps, and provide a comprehensive overview of breastfeeding self-efficacy. Data were retrieved from the Scopus online database on March 20, 2024, encompassing articles published in English between 2000 and 2023. The search strategy focused on articles containing the keywords "self-efficacy," "breastfeeding," and "mother." VOSviewer version 1.6.19 was then used to map the data and visually identify research clusters. The analysis yielded a significant increase in breastfeeding self-efficacy research over the past 2 decades. The United States led in publication numbers (117 documents), while Canada dominated citations (2792 citations). Furthermore, the analysis identified 8 critical themes in 8 different clusters, encompassing various aspects of breastfeeding, including determinants, behaviors, interventions, and mental health considerations during lactation, and employed research methodologies. One crucial gap identified in this study pertains to low breastfeeding social support. This includes a lack of support from peer groups, social networks, and social media platforms. Addressing this gap can be a valuable reference point for developing future interventions to bolster breastfeeding self-efficacy. Bibliometric analysis contributes to exploring research trends, identifying knowledge gaps, and providing a comprehensive overview of breastfeeding self-efficacy.