GJ

GJ or Gj may refer to:

• Gj (letter), a Latin digraph
• Generic Java, a programming language
• Gharjamai, a live-in Son-in-Law
• Gigajoule, a unit of energy
• Eurofly's IATA code
• Mexicargo's IATA code
• GJ, a prefix for Gliese Catalogue of Nearby Stars star catalogue references
• Good job (phrase)