ROKS Cheonan is the name of two South Korean Navy warships:
- ROKS Cheonan (PCC-772), a Pohang-class corvette from 1989 to 2010.
- ROKS Cheonan (FFG-826), a Daegu-class frigate commissioned in 2023.
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.