The number of Chinese dumplings that one person can eat varies greatly depending on individual preference.  As a general rule of thumb, most people feel comfortably full after having around 8-10 dumplings.  For those with a larger appetite or who are looking to enjoy an extra indulgent meal, 12-15 dumplings per person is usually enough to satisfy the cravings.  Chinese dumplings also tend to be quite filling due to their rich ingredients and the large amount of dough used in making them.   So, if you're sharing among multiple people, it's usually best to order a few more than what you think you'll need so you won't leave anyone feeling deprived!