GPT may refer to:

Computing

• Generative pre-trained transformer, a type of artificial intelligence language model
• ChatGPT, a chatbot developed by OpenAI, based on generative pre-trained transformer technology
• GUID Partition Table, a disk partitioning standard

Biology

• Alanine transaminase or glutamate pyruvate transaminase
• Goniopora toxin
• UDP-N-acetylglucosamine—undecaprenyl-phosphate N-acetylglucosaminephosphotransferase

Companies

• GEC Plessey Telecommunications, a defunct British telecommunications manufacturer
• GPT Group, an Australian property investment company
• GPT, subsidiary of Airbus SE

Other uses

• Gulfport–Biloxi International Airport, in Mississippi
• General-purpose technology, in economics
• Generalized probabilistic theory, a framework to describe the features of physical theories
• Grounded practical theory, a social science theory