Pot stickers, which are Chinese dumplings, and gyoza, which is a Japanese dumpling, use the same thin, round wrappers to hold their fillings. Most pot sticker or gyoza wrappers are more delicate on the outside so that the outside can be easily sealed. Wonton wrappers are square wrappers that don't pleat as well as dumpling wrappers do. In theory, they're interchangeable, although not authentically. If you do want to use a wonton wrapper to make potstickers, gyoza, or dumplings, you'll need to cut the wonton wrapper dough into a circle before using it in a dumpling mold.