O23
O23 or O-23 may refer to:
- HNLMS O 23, a submarine of the Royal Netherlands Navy
- Osim International, a Singaporean company
- Oxygen-23, an isotope of oxygen
- Ranchaero Airport, in Butte County, California, United States; assigned FAA LID O23 until 2009
- Thomas-Morse O-23, an observation aircraft of the United States Army Air Corps
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.