RGI

RGI may refer to:


 * Railway Gazette International, a monthly business journal
 * Rangiroa Airport, French Polynesia
 * Royal Glasgow Institute of the Fine Arts, art gallery in Glasgow, Scotland
 * Rio Grande Industries, a railroad holding company name.
 * Recommended for General Interchange, in the Unicode support of emojis.
 * Resource Group International, merged into Aker ASA, a company owned by Norwegian businessman Kjell Inge Røkke
 * RAND Graduate Institute, the original name of Pardee RAND, a graduate school in California