Background: Mental health problems are highly prevalent among university students in Saudi Arabia; however, help-seeking behaviors remain low despite the availability of mental health services. There is limited evidence regarding students’ intentions to seek help and preferred sources of support, especially formal or informal sources. This study examined help-seeking intentions for mental health problems among university students. Methods: This cross-sectional descriptive study was conducted using an online self-administered questionnaire. Participants were 248 undergraduate students from various Riyadh universities. Help-seeking intentions were assessed using the General Help-Seeking Questionnaire. SPSS software was used to perform independent t-tests to assess differences in preferred sources across demographic groups, and Pearson’s correlation analyses were conducted to examine relationships between preferred sources and demographic variables. Multiple linear regression analyses were conducted to examine demographic and academic predictors of intentions to seek help from formal and informal sources. Results: Students demonstrated a low overall propensity to seek help. Online sources were the most preferred help-seeking option, followed by mothers, friends, and general physicians, whereas faculty, relatives, and religious persons were the least preferred. Preferred help-seeking sources differed by gender. Seeking help from mental health specialists was positively correlated with age and grade point average. Additionally, the regression analysis for formal help-seeking was significant, explaining 8.4% of the variance, with gender as the only significant predictor. Conclusions: These findings suggest the need for targeted interventions to improve students’ help-seeking behaviors. Universities should prioritize mental health literacy initiatives, stigma reduction strategies, and accessible support pathways, particularly by integrating digital and hybrid services and enhancing the role of faculty and institutional support systems in promoting timely and appropriate help-seeking.