H5
- 5H (disambiguation)
- ATC code H05
- British NVC community H5
- DSC-H5
- H5 (French company)
- H5 (US company)
- H5 (chronometer)
- H5 (classification)
- H5 Portway
- H5 Series Shinkansen
- HMS Greyhound (H05)
- HMS H5
- HMS Ithuriel (H05)
- HTML element
- HTML5
- Haplogroup H5 (mtDNA)
- Hierarchical Data Format
- Histone H5
- Hola Airlines
- Hydrogen-5
- ICD-10
- Ilyushin Il-28
- Influenza A virus subtype H5 (disambiguation)
- Magadan Airlines
- Rely H5
- Sikorsky H-5
- USS H-5 (SS-148)