Introduction: Episiotomy is obstetric surgical operation performed to increase the diameter of the vulvas outlet during the late period of the second stage of labor to facilitate vaginal delivery. The rate of episiotomy is on the decline in developed countries but still remains high in developing countries. Though practice of episiotomy has become common problem among mothers who delivered vaginally in Ethiopia, studies are limited to show its magnitude. Objective: To assess prevalence and associated factors of episiotomy among Mothers who Gave Birth at Tibebe Ghion Specialized Hospital, Bahir Dar City, Ethiopia from May 1 to September 1, 2021 Methods: Hospital based Cross sectional study was conducted among 460 Mothers who Gave Birth Vaginally from May 1 to September 1, 2021 at Tibebe Ghion Specialized Hospital, Bahir Dar City, Ethiopia.Study participants were selected with systematic random sampling. Pretested Questionnaire was used to retrieve information. The collected data was entered into Epi-data and then exported in to SPSS 23 for analysis. Bivariable and multivariable logistic regression analysis with 95% CI was computed to identify statistically significant associated factors with P value <0.05. Results: The prevalence of episiotomy was 35.9% (95%CI= 31.9-40.4) in this study area. Age group of 15-20 years [AOR =2.02(95% CI: (1.09,3.73)];level of education who attended primary school [AOR = 3.66(95% CI: (1.93,6.94)], those who attended secondary school [AOR = 2.66(95% CI: (1.34,5.31)] and those who attended College and above [AOR = 2.34 (95% CI: (1.14,4.78)],primiparity [AOR=2.71(95% CI: (1.59,4.62)], induced labor [AOR=2.36 (95% CI: (1.27,4.38)],duration of second stage of labor greater than 2 hours [AOR=3.81(CI:( 1.50,9.65)], instrument assisted delivery [AOR=3.60 (95%CI:( 1.03,12.55 )], a neonate whose birth weight was more than or equal to 4kg [AOR=4.96 ( CI:( 1.38,17.77)] were the associated factors affecting episiotomy practice Conclusion and Recommendation: This study showed that the Prevalence of episiotomy was high when compared with WHO recommendation. Young age, Primiparity, level of education, duration of second stage of labor, instrumental delivery, induced labor and birth weight of the neonate were significantly associated with the magnitude of episiotomy. It is important that health care providers always consider indications of episiotomy and restrictive use of it. Key words: Associated Factors, Episiotomy, Prevalence