Others
- République Populaire de Chine, República Popular China, "República Popular da China", the French, Spanish and Portuguese names for the People's Republic of China
- Recurrent pyogenic cholangitis, a medical condition especially common in Asians
- Role-playing character
- Root Path Costs, a field within the BPDU of the spanning tree protocol
- Rei Publicae Constituendae, part of the title of the members of the second triumvirate, appearing on coins
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