HNZ

HNZ may refer to:
 * Croat People's Union (Croatian: Hrvatska narodna zajednica)
 * Heinz, an American food processing company
 * Henderson–Oxford Airport, in North Carolina, United States
 * Herzegovina-Neretva Canton (Croatian: Hercegovačko-neretvanska županija, HNŽ)
 * HNZ Group, a Canadian helicopter operator
 * Helicopters (NZ), their New Zealand subsidiary