RDO

RDO may stand for:
 * Radom Airport, Poland, IATA code
 * Radio Dom Ostankino, Russian broadcaster and member of the European Broadcasting Union
 * Ranidel de Ocampo (born 1981), Filipino basketball player
 * Raster Document Object (.rdo), a file format used in print on demand systems manufactured by Xerox
 * Rate–distortion optimization, a decision algorithm used in video compression
 * Remote Data Objects, a deprecated Microsoft technology
 * Relational Database Operator, a query interface for the Oracle Rdb database
 * Red Hat Distribution of OpenStack, a community-supported distribution of OpenStack launched by Red Hat in 2013
 * Red Dead Online, a 2019 video game
 * Regular Democratic Organization, a historical political group based in New Orleans, United States