The Islamic banking sector has become a crucial part of the global banking industry. Despite the Islamic banking industry’s encouraging growth in the Southeast Asia (SEA) region, prior studies mostly focused on Islamic banks’ efficiency in the individual country. To fill the literature gap, this study aims to measure the efficiency and productivity growth of Islamic banks in the SEA region. This study adopted the DEA technique and the Malmquist productivity index to evaluate 31 Islamic banks’ performance in SEA from 2014 to 2019. The results evidenced an improvement in efficiency and progress in productivity for the banks in the region. The findings documented better efficiency and gradual progress in productivity for Islamic banks in Indonesia, consistent efficiency for Malaysia, a significant improvement for Brunei; hence, both Thailand and the Philippines Islamic bank depicted a drop-in efficiency for 2019. The findings trigger bank managers to acknowledge the inefficiencies and their sources. Investors and policymakers may find the findings useful in observing the banks’ performance; thus, taking effective mechanism and policies to promote competent and sustainable SEA Islamic banks in the long run.

伊斯兰银行业已成为全球银行业的重要组成部分。尽管伊斯兰银行业在东南亚（SEA）地区的增长令人鼓舞，但先前的研究主要集中于伊斯兰银行在单个国家/地区的效率。为填补文献空白，本研究旨在衡量东南亚地区伊斯兰银行的效率和生产率增长。这项研究采用DEA技术和Malmquist生产率指数来评估2014年至2019年31家伊斯兰银行在东南亚的表现。结果证明该地区银行的效率和生产率有所提高。调查结果表明，印尼伊斯兰银行的效率更高，生产率逐步提高，马来西亚的效率始终如一，文莱则显着提高；因此，泰国和菲律宾伊斯兰银行都描述了2019年的效率下降。这一发现促使银行管理者认识到效率低下的原因及其来源。投资者和政策制定者可能会发现这些发现有助于观察银行的表现；因此，从长远来看，采取有效的机制和政策来促进有能力和可持续发展的SEA伊斯兰银行。