The main purposes of this study are to investigate citizen adoption of e-government services in Jordan and to explore factors affecting the level of adoption of e-government services. Importantly, this study aims to develop a conceptual framework that is based on previous literature of Technology Acceptance Model (TAM) in order to examine the relationships between certain factors (government trustworthiness, service quality and citizen satisfaction) and citizen adoption of e-government services. A self-administered questionnaire was used to capture data from 356 Jordanian citizens across the country randomly. The findings indicate that perceived usefulness, perceived ease of use, citizen satisfaction and trustworthiness are significant predictors of the Jordanian intention to use an e-government service. The results also showed that the service quality dimensions: responsiveness, reliability, and empathy have significant impacts on the citizen satisfaction. The study has made significant contributions to the body of knowledge at academic and practical levels as an important exploratory study that was conducted in the context of Jordan, a developing country with genuine need for more research works on e-government issues. In addition, this study provides some valuable insights into the performance and adoption of e-government in Jordan that could help government agencies to improve the effectiveness of their services.