Ren or REN may refer to:
People
Ren Gill, or Ren, Welsh musician
Ren (South Korean singer), member of South Korean boy band NU'EST
Renforshort, Canadian singer formerly known as Ren
MC Ren, rapper from the group N.W.A.
Ren (given name), a mostly Japanese given name, includes a list of people and fictional characters with the name
Ren (surname) (任), Chinese surname, includes a list of people and fictional characters with the name
Raw Egg Nationalist, British far-right influencer
Places and buildings
Ren County, in Hebei, China
Ren, Iran, a village in Kerman Province, Iran
Ren (building), a high-rise residential building in Seattle, Washington, United States
Orenburg Airport, IATA code REN, civil airport in Russia
Science and technology
Renin, a gene also known as REN
Ren, in anatomy, a kidney (from Latin)
Ren (command), a shell command in computing
Renanthera, abbreviated as Ren, an orchid genus
Ringer equivalence number (REN), a number which denotes the loading effect of a telephone ringer on a telephone line
Religion
Ren, "name, identity", a part of the Ancient Egyptian concept of the soul or spirit
Ren (philosophy), Confucian concept
Other uses
Ren (fictional weapon), an alternate term for lightsaber in the Star Wars franchise
REN TV, a Russian free-to-air television network
Techrules Ren, a Chinese sports car
Redes Energéticas Nacionais (REN), Portuguese energy company