Abstract: A retractable chopstick includes a hollow mounting sleeve, and a shank retractably mounted in the mounting sleeve and movable relative to the mounting sleeve between a retracted position where an upper end of the shank is locked in an upper end of the mounting sleeve and a lower end of the shank is received in a lower end of the mounting sleeve and an expanded position where the shank protrudes outwardly from the mounting sleeve and the upper end of the shank is locked in the lower end of the mounting sleeve. Thus, the shank can be retracted into the mounting sleeve when not in use, so that whole volume of the retractable chopstick is reduced largely, thereby facilitating the user carrying, packaging and storing the retractable chopstick.