H42
H42 or H-42 may refer to:
- H-42 (Michigan county highway)
- Glaucoma
- HMS Arrow (H42), a Royal Navy A-class destroyer
- HMS H42, a Royal Navy H-class submarine
- H-42, an H-class battleship proposal for Germany's Kriegsmarine during World War II
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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