Finger-counting, also known as dactylonomy, is the act of counting using one's fingers. There are multiple different systems used across time and between cultures, though many of these have seen a decline in use because of the spread of Arabic numerals.

Chinese number gestures are a method to signify the natural numbers one through ten using one hand. This method may have been developed to bridge the many varieties of Chinese—for example, the numbers 4 and 10 are hard to distinguish in some dialects. Some suggest that it was also used by business people during bargaining when they wish for more privacy in a public place. These gestures are fully integrated into Chinese Sign Language.