Yongdingmenwai Subdistrict () is a subdistrict in the southern part of Dongcheng District, Beijing, China. By the year 2020, it has a population of 64,790.
The subdistrict got its name from Yongdingmen (), a former front gate on the Beijing city wall.
As of 2021, There are a total of 19 communities within the subdistrict: