Cong may refer to:
- Cong (vessel), is a form of jade artifact from ancient China
- Cong (surname), (叢/丛) a Chinese surname
- Cong, County Mayo, Ireland, a village
- Cong Weixi (1933–2019), Chinese author influential in the post-Mao literary scene
- Phunoi people, called Cống in Vietnam, an indigenous people
- A slang name for the Vietcong, in the Vietnam War