Abstract: This study investigated how ethical leadership affects employee performance at the TANESCO Tabora office. The study adopted positivism philosophy with the aid of a quantitative research approach and an explanatory research design. A sample size of 175 respondents was selected using simple random sampling from the population of 312 workers within the TANESCO Tabora Office. A systematic questionnaire was used for collecting the data, and descriptive, correlation, and regression analyses were used to analyze the results. The results showed that leadership dimensions like job fairness had a significant positive impact on employee performance. Moreover, the study recommends that management of the TANESCO Tabora office should involve employees in decision-making and delegate tasks to employees more to enhance their productivity. At the TANESCO Tabora office, participatory decision-making is necessary. This might be accomplished by allowing lower-level staff to participate in the process of making decisions. Moreover, senior leaders at the TANESCO Tabora office should continuously provide role clarification for employees to maintain and improve their performance.