Amalda sinensis is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae.
The length of the shell attains 16 mm.
(Original description) A small white shell, resembling Amalda marginata, but much narrower, and with the varix narrower and more obliquely plicated.
This marine species occurs off Japan, the Philippines and off Borneo (Malaysia).