PHB can refer to several things:

• Bachelor of Philosophy degree. In English-speaking countries, a PhB, (or BPhil,) is often awarded with 'distinction' or 'honors'
• Per-Hop Behaviour, in the DiffServ world
• Pointy-Haired Boss, a character from the Dilbert cartoons
• Polyhydroxybutyrate
• Prohibitin, a human gene
• Player's Handbook, a rulebook for role-playing game Dungeons & Dragons
• PHB (bicycle), a hydrogen bicycle
• Platinum Habib Bank (Bank PHB), a commercial bank in Nigeria, a member of the Bank PHB Group

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