World Register of Marine Species identifier
- Name: World Register of Marine Species identifier
- Alternative Name: WoRMS-ID
- Specification URI: https://www.marinespecies.org/aphia.php?p=idkeys
- Scope: Other
- Disciplines: Earth Science, Oceanography
- Keywords: specimen
- Description: WoRMS ID Keys are online polytomous or multi-state identification keys, intended to easily determine the name of a specimen. They can be generated for any taxonomic group, at any chosen level.