Hean Tat Keh (simplified Chinese: 郭贤达; traditional Chinese: 郭賢達; pinyin: Guō Xiándá; Pe̍h-ōe-jī: Koeh Hiân-ta̍t) is a professor and chair of the Department of Marketing at the Monash University Faculty of Business and Economics. He is known for his work on services marketing, consumer behavior, brand management, and marketing strategy. In particular, his research on services marketing addresses the limitations of the concepts of service inseparability and service intangibility. Keh has also published on the antecedents and consequences of brand equity. More recently, he has conducted research on sustainable marketing and healthcare marketing. His works have been cited over 8700 times according to Google Scholar.