PCG is a three letter acronym that can stand for:
- Pacific Corporate Group, a La Jolla based alternative investment management firm
- People's Consultative Group, a citizens' group in Assam formed by ULFA to participate in the peace-talk process with the government of India
- PC Gamer, a magazine
- Pentecostal Church of God
- Philadelphia Church of God
- Plan Comptable Français (Generally Accepted Accounting Principles in France)
- Police Coast Guard of the Singapore Police Force
- Preconditioned conjugate gradient method, a numerical solver
- Procedural content generation
- Professional Contractors Group, the trade association that represents the interests of UK freelancers
- Philippine Coast Guard, the maritime law enforcement agency operating under the Department of Transportation and Communications of the Philippines
- Parent company guarantee, a contract provision regarding subsidiary contractors
- Polycomb-group proteins, a family of proteins that can remodel chromatin such that epigenetic silencing of genes takes place
- Phonocardiogram, a plot of high fidelity recordings of the sounds and murmurs made by the heart
- Primera Crónica General
- Programs Combinations Global, a file extension used for files storing sounds of Korg music workstations
- Project Control Group
- PCG is the stock symbol for Pacific Gas and Electric Company