Differences in cultures, religious beliefs, and philosophical views suggest that leadership ethics may vary between Western and Eastern perspectives. However, ethical leadership scales are mostly rooted in Western conceptualization. This systematic review explores the cultural contributions, philosophical perspectives, and underlying theories shaping the measures of ethical leadership. A comprehensive search across Scopus, Web of Science, ProQuest Management, and Emerald Insight from 1990 to 2021 yielded over 3900 articles, with only 15 focusing on an Eastern conceptualization of ethical leadership. Findings reveal that Eastern ethical leadership encompasses unique dimensions, including leaders’ responsibility and concern for long-term sustainability, often overlooked in existing measures. Despite some similarities in virtues and values between Eastern and Western philosophical views, past studies predominantly employed Western theoretical perspectives to explain ethical leadership. This review highlights the imperative for measures that authentically capture Eastern cultural distinctions, crucial for advancing ethical leadership research amid the East’s increasing global influence.