Lymphatic filariasis (LF) is a neglected tropical disease affecting millions, with Southeast Asia (SEA) remaining a high-risk region despite significant global reductions. The World Health Organization (WHO) has set 2030 as the target for LF elimination. However, accomplishing this goal in SEA requires comprehension of the distribution, ecology, behavior, and competency of LF vectors, which are crucial for formulating effective control strategies. This comprehensive scoping review, the first to compile all existing data on LF vectors across the SEA region, aims to elucidate distribution, ecological and behavioural patterns, and vector competence. The findings will be used to identify knowledge gaps and develop targeted vector control measures, thereby contributing to the regional and global elimination of LF.