The aim of the study is to examine the effect of prenatal comfort on the perception of traumatic birth in pregnant women. The data for the cross-sectional study were collected between April and September 2023. The study sample consisted of 233 pregnant women who met the inclusion criteria and were in the third trimester. In the data collection phase, a demographic information form, prenatal comfort scale, and traumatic birth perception scale were used. The data analysis was performed using SPSS 27.0 software package. It was found that the mean traumatic birth perception score of pregnant women was 86.25±25.58 and 41.2% of pregnant women had a high level of traumatic birth perception. The mean prenatal comfort score of the pregnant women was 64.52±9.85 and was found to be at a good level. No significant relationship was found between prenatal comfort and the perception of traumatic birth. It was concluded that there was a statistically significant difference between the mean prenatal comfort score of pregnant women and factors such as the age of the pregnant woman, educational status, number of pregnancies, planned pregnancy status and being multiparous. Additionally, a significant difference was found between the perception of traumatic birth and factors such as the age of the pregnant woman, educational status, number of pregnancies, being multiparous, last birth experience, and description of the current pregnancy. It was concluded that pregnant women had a good level of prenatal comfort, but their perception of traumatic birth was quite high. It is important for midwives to plan and implement interventions to reduce the perception of traumatic birth and increase prenatal comfort among pregnant women in the clinical setting. [ABSTRACT FROM AUTHOR]