Orion 1 or Orion-1 may refer to:
- Exploration Flight Test-1, the first test launch of the Orion space capsule in 2014
- Orión (rocket), a sounding rocket prototype from Argentina, launched in 1965 and 1966
- Orion (space telescope), a space telescope flown in 1971 aboard the Salyut 1 space station
- Orion 1, a communications satellite launched in 1994, later renamed Telstar 11
- Mission Orion 1, a cancelled Constellation program
See also
- 1 Orionis, a star in the constellation of Orion
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