Others
- Ren, in anatomy, a kidney
- Ren (command), a shell command
- Ren County, in Hebei, China
- REN (TV channel), a TV channel in Russia
- Ren - meaning to connect or link in Japanese culture - see also renga / renku
- Ren - 'arts ren' a collaborative linked arts piece Yuko Tanaka / Paul Conneally
- Ren - meaning lotus
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