Answer:
FHB Fusarium Head Blight
FHB First Hawaiian Bank
FHB First Home Buyer (Australia)
FHB Flexor Hallucis Brevis
FHB Facques Hess Bourbouloux (French administrative company)
FHB Fine Home Building (magazine)
FHB Fetal Heart Beat
FHB Family Hold Back
FHB Fish Hungry boy (Harbinger, NC)
FHB Fédération Hattrick Belgique (French: Belgian Hat Trick Federation; Belgian soccer organization)
FHB Fair Haired Boy
Explanation:
