Abbreviations
- Orenburg Tsentralny Airport, IATA code REN, civil airport in Russia
- Redes Energéticas Nacionais (REN), Portuguese company
- Renanthera, abbreviated as Ren, orchid genus
- Ringer equivalence number (REN), a somewhat arbitrary number which denotes the loading a telephone ringer has on the line
Read more about this topic: Ren