Online banking allows a user to conduct financial transactions via the Internet. Online banking is also known as Internet banking or web banking. Online banking offers customers almost every service traditionally available through a local branch, including deposits, transfers, and online bill payments. The goal of this research was to analyze international tourists’ satisfaction with online banking services in the context of Ho Chi Minh City. The paper explores international tourists’ satisfaction with efficient dimensions, responsiveness dimensions, system-available dimensions, privacy dimensions, fulfillment dimensions, compensation dimensions, and contact dimensions. The data were gathered from a sample of 176 international tourists to Ho Chi Minh City by utilizing a purposive sampling method and adopting a survey method comprised of a structured questionnaire. The findings of the research suggest that efficient dimensions, system availability dimensions, privacy dimensions, and fulfillment dimensions are the most essential aspects that significantly affect international tourists’ satisfaction with online banking services. The study also reports that responsiveness dimensions, compensation dimensions, and contact dimensions do not have a statistically significant impact on international tourists’ satisfaction. It has implications for bank service marketers regarding the effective design of service marketing strategies for enhancing international tourists’ satisfaction in the context of online banking services in Ho Chi Minh City.