The 2018 Southeast Asian Girls' U17 Volleyball Championship, referred to as the 2018 Est Cola Southeast Asian Girls' U17 "Princess Cup" Volleyball Championship for sponsorship reasons, will be the twentieth edition of the , a biennial international volleyball tournament organised by the Asian Volleyball Confederation (AVC), Southeast Asian Zonal Volleyball Association (SEAZVA) with Thailand Volleyball Association (TVA) for the girls' under-17 national teams of Southeast Asia. The tournament will be held in Nakhon Pathom, Thailand, from 13 to 17 May 2018.