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