Gyoza is just the name for them in Japanese. They are popular all over Asia, and there are minor recipe differences. Gyoza tend to be smaller and have a more delicate skin.
But the Taiwanese have a version very similar.
Potstickers is the accepted name for describing them in this country. At least it's better than one region calling them Chinese Raviolis! :-P
Fried dumplings or potstickers, most restaurants will know exactly what you want.
Jiaozi (Jow Za) or
Guo Tie
The 10 minute version, about $3.29 a bag, will serve 3 for lunch. The chicken is tastier than the pork.
QQ Bakery in Madison Heights, MI makes better Cha Shao Bao than in Toronto, NNJ or Beijing for that matter. No fat in the pork and $1.00 each. Pic is not their Bao, but for the uninitiated. Great for breakfast!