RIAS
# RIAS

RIAS or Rias may refer to:

* Recording Industry Association Singapore
* Regulatory Impact Analysis Statement, a description of the impact of new Canadian federal regulations
* Remote Infrared Audible Signage
* Research Institute for Advanced Studies, the former research facility created by the Glenn L. Martin Company
* Reynolds Intellectual Assessment Scales, an intelligence test
* Royal Incorporation of Architects in Scotland, a professional body
* Rundfunk im amerikanischen Sektor (Broadcasting in the American Sector), a radio and television station in West Berlin, Germany
   * RIAS Symphonie-Orchester, now called the Deutsches Symphonie-Orchester Berlin, is a broadcast orchestra based in Berlin
   * RIAS Kammerchor, a choir founded as a radio choir and based in Berlin
* Rias Gremory, a fictional character in the High School DxD franchise
* Rias Line, a railway line in Japan
