Introduction: Breastfeeding is vital for child survival and development, yet its practices are influenced by cultural, social, and informational factors. There is inadequate data concerning breastfeeding knowledge, attitudes, and practices (KAP) among the Orang Asli in Malaysia. This study aims to assess the KAP related to breastfeeding among Orang Asli in Peninsular Malaysia. Methods: A cross-sectional study was carried out between July 2022 and November 2023 among Orang Asli women aged 18 years and older with at least one child. Respondents were selected from sub-ethnic groups across three main indigenous categories. Data were gathered through a structured questionnaire, administered by interviewers which covered socio-demographics, knowledge, attitudes, and practices. Descriptive statistics were used for analysis. Results: One hundred respondents participated in the study. The majority (89%) had practiced exclusive breastfeeding, and 90% intended to continue in the future. About 98% correctly recognized that adequate breastfeeding helps infants sleep better, and 94% knew that complementary feeding should begin at six months. But several cultural or misinformation-related beliefs persisted. For example, 42% believed colostrum should be discarded, and 49% thought breastfeeding should be stopped if the mother had cracked nipples. Overall, respondents demonstrated positive attitudes and consistent breastfeeding practices. Although 58% found exclusive breastfeeding tiring for the mother. Conclusion: Despite high breastfeeding rates and positive intentions, mixed feeding practices and misconceptions persist among Orang Asli mothers. Culturally sensitive, community-based education is needed to reinforce accurate breastfeeding knowledge and support exclusive breastfeeding practices.