Command module may refer to:
*The
Apollo command module
The Apollo command and service module (CSM) was one of two principal components of the United States Apollo (spacecraft), Apollo spacecraft, used for the Apollo program, which landed astronauts on the Moon between 1969 and 1972. The CSM functi ...
, the crew cabin used in the Apollo program designed specifically to return through the atmosphere to a water landing
*The crew module of the
Orion spacecraft
Orion (Orion Multi-Purpose Crew Vehicle or Orion MPCV) is a partially reusable crewed spacecraft used in NASA's Artemis program. The spacecraft consists of a Crew Module (CM) space capsule designed by Lockheed Martin that is paired with a Eu ...
, designed to function similarly to the Apollo command module
*An
electronic control unit used to control a motor vehicle system or subsystem
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