Since the onset of the COVID-19 pandemic, the implementation of contactless technologies in hospitality and tourism has grown exponentially, making understanding consumer adoption of these technologies an important research area. A systematic literature review of relevant studies published in hospitality and tourism journals was conducted to identify three main subsets of the antecedents of contactless technologies adoption: system, user, and the environment. An analysis of 44 peer-reviewed articles from top hospitality and tourism journals is presented, along with an identification of 10 main categories of contactless technology. Findings indicate the specific technologies adopted since the onset of the COVID-19 pandemic and the common factors studied related to contactless technologies in past research. Theoretical/managerial implications and directions for future research are discussed.