PHB

• Per-hop behaviour, in the DiffServ world
• Polyhydroxybutyrate, a biopolymer
• Prohibitin, a human gene

• Pedestrian hybrid beacon, a type of traffic signal
• Parnaíba-Prefeito Dr. João Silva Filho International Airport (IATA code), Brazil
• Phoebus Apollo Aviation (ICAO code), a small airline in South Africa

• Peterhouse Boys' School, a private boys' high school in Zimbabwe
• Platinum Habib Bank (Bank PHB), a commercial bank in Nigeria, a member of the Bank PHB Group

• Personal health budgets, a stated funded healthcare package
• Bachelor of Philosophy (PhB), a degree
• Pointy-haired boss, a character from the Dilbert cartoons
• Player's Handbook, a rulebook for role-playing game Dungeons & Dragons
• PHB (bicycle), a hydrogen bicycle
• Pig Heart Boy, a children's book by Malorie Blackman, made into a television show
• Proton Holdings Berhad, a Malaysian automotive company

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