Introduction: Malnutrition is currently a significant global issue; it affects all people mostly in low and middle-income countries. The prevalence of double burden malnutrition at the household level has increased significantly in sub-Saharan African countries. Objective: - To assess the double burden of malnutrition and its associated factors among mother-child pair at household level in Bahir Dar city 2021. Method: community-based cross-sectional study design was employed among 702 mother-child pairs in Bahir Dar City from February 28 - March 23/2021. A multistage sampling technique was used to identify study participants and was interviewed using interviewer-administered. Questionnaire entered into epi data V 3.1 and analyzed using SPSS V 25. Children nutritional status was assessed using WHO Anthro software and for mothers by SPSS V 25. Univariable and multivariable binary logistic regression was done. Statistical significance was determined by using 95% CI at a 5% level of significance. Results: The prevalence of the double burden of malnutrition among mother-child pair was 14.5%. Participants who were in the richest wealth index were 4.72 {AOR=4.72, 95%CI (2.09, 10.63)} times more likely to have the double burden of malnutrition compared with the poorest wealth index. The Risk of the double burden of malnutrition among children who had high dietary diversity decreased by 63% {AOR=0.37 (0.22, 0.61)} as compared with low dietary diversity. Participant who had Food security were 1.96 (AOR=1.96, 95% CI (1.13, 3.39)) times more likely to have the double burden of malnutrition than food insecurity households. The odds double burden of malnutrition among mothers who completed college and above decreased by 74% {AOR=0.26 (0.121, 0.549)} as compared with mothers who could not read and write. Conclusions: the magnitude of the double burden of malnutrition was low compared with the EDHS report. Recommendation: A prospective follow-up study including micronutrient deficiency and common non-communicable diseases are suggested to estimate the double burden more precisely. Keyword: Double Burden of Malnutrition, Mother-child pairs, Ethiopia