Background: Peripartum depression (PPD) is identified globally as a major maternal morbidity. Stigma and underlying perceptions such as perceived threat which includes perceived severity and perceived susceptibility regarding PPD can interfere with timely identification, help seeking and, treatment acceptance, hindering efforts to control maternal mortality and morbidity due to this disease.Methods: A cross sectional study was conducted among pregnant women with a period of gestation more than 12 weeks attending field antenatal clinics in Anuradhapura district, Sri Lanka. Multistage cluster sampling with probability proportionate to size was used for sampling. Self-completed questionnaire with a vignette describing a postpartum mother with symptoms of peripartum depression (part A) and accompanied suicidal ideation (part B) was given to participants. Based on the vignette, agreement on stigma and perception statements were marked in a five point likert scale. An exploratory factor analysis was conducted on stigma statements. Including the factor scores, agreement to perception statements and selected socio-demographic variables, a logistic regression model was run to explain the perceived susceptibility.Results: Out of the 624 participants, 60.7% (n-379) perceived that they are not susceptible to develop a mental health problem during antenatal or postnatal period of the pregnancy. Though 86.2 % (n-525) had heard about PPD, its symptoms and even suicidal ideation were normalized by 55.9% (n-260) and 49.5% (n-280) of participants respectively. About 79.1% (n-468) thought that symptoms would resolve without treatment. By exploratory factor analysis on stigma statements (c2 80.376, p<.001), a two factor solution was achieved. Factors were interpreted as judgmental and nonjudgmental stigma. Mainly nonjudgmental stigma was evident among participants. Direct logistic regression for predicting the perceiving personal susceptibility to a perinatal mental illness (2 =31.474, p= 0.017, N = 329) revealed that only factor score for nonjudgmental stigma became statistically significant in the model (OR -0.691 p=0.029).Conclusion: Perceived threat from symptoms of peripartum depression and even suicidal ideation is low in this community. Presence of nonjudgmental stigma in this community also shows the need for social interventions to address these issues related to PPD and related morbidities.