Depression stigma has been considered a significant barrier to treatment and rehabilitation. This study aimed to understand the effects of gender, previous mental health care, and symptomatology on depression stigma and analyze the impact of depression stigma on help-seeking attitudes. A total of 969 students with a mean age of 18.87 (SD = 1.49) were included in this study and completed the Depression Stigma Scale, the Attitude Toward Seeking Professional Psychological Help, the Patient Health Questionnaire-4 questionnaire, and a socio-demographic questionnaire. We analyzed data using SPSS 24.0, with a 95% confidence interval. Participants came from all University schools, and 64.6% were women. Personal stigma and help-seeking attitudes were affected by gender (β(male) = 5.65, CI = 4.07, 7.25) and previous access to mental healthcare services (β(previous help) = -4.35, CI = -5.89, -2.82). Perceived depression stigma was affected gender (β(male) = -2.67, CI = -5.00, -0.34) and symptomatology (β(no symptomatology) = -3.29, CI = -6.09, -0.49). Personal (r = -0.42, p<0.01) and perceived (r = 0.10, p<0.01) depression stigma correlated with help-seeking attitudes, but we detected no direct symptomatology effect on help-seeking attitudes. Personal depression stigma significantly affected help-seeking attitudes (β = -0.15, CI = -0.17, -0.12). Promoting literacy may decrease personal depression stigma and increase professional help-seeking attitudes and behaviors.