C40
C40 stands for:
- Malignant neoplasm of the bone and articular cartilage of the extremities , ICD-10 code of the disease; see bone tumor
- Chrysler C40 , a 1940s car model
- Crush 40 , a Japanese-American hard rock band
- C40 Cities Climate Leadership Group , "Group for global leadership in climate protection", in which the 40 largest cities in the world are organized, founded in 2005.
- Caldwell 40 , a galaxy from the Caldwell catalog
C-40 stands for:
- Boeing C-40 , a military version of the Boeing 737-700C