• What does O1 Stand For?

    For O1 we have found 4 definitions.

  • What does O1 mean? We know 4 definitions for O1 abbreviation or acronym in 1 categories. Possible O1 meaning as an acronym, abbreviation, shorthand or slang term vary from category to category. Please look for them carefully.

O1 Stands For:

All acronyms (4)Airports & Locations Business & Finance Common Government & Military (1)Medicine & Science Chat & Sub Cultures Education Schools Technology, IT etc.
*****O1Organized Naval Reserve Seagoing
****O1Officer grade: Ensign or 2nd Lieutenant
**O1Only one
**O1Orbitor 1