H4H may refer to:

• Habitat for Humanity, an international housing charity
• Help for Heroes, a British veteran's organization
• Hiro H4H, a Japanese interwar bomber

• Gennady Volkov (educator)
• Gennady Zakharov
• Gennady Zyuganov 1996 presidential campaign
• Gennady Zyuganov 2000 presidential campaign
• Gennady Zyuganov 2008 presidential campaign
• Gennady Zyuganov 2012 presidential campaign
• Gennady Zyuganov presidential campaign, 1996
• Gennady Zyuganov presidential campaign, 2000
• Gennady Zyuganov presidential campaign, 2008
• Gennady Zyuganov presidential campaign, 2012
• Gen Nakagawa
• Gennari
• Gennaria griffithii
• Gennari’s band
• Gennaro Acampora
• Gennaro Antonio Federico
• Gennaro Armeno
• Gennaro Bizzaro
• Gennaro Bizzarro
• Gennaro Brooks-Church
• Gennaro Cali
• Gennaro Calì
• Gennaro (disambiguation)
• Gennaro Federico
• Gennaro Filomarino