CUDA (Compute Unified Device Architecture) programming is a parallel computing platform and application programming interface (API) model created by NVIDIA. It allows developers to harness the computational power of NVIDIA GPUs (Graphics Processing Units) for general-purpose processing. CUDA enables developers to write programs that can execute on the GPU, leveraging its massively parallel architecture to accelerate various types of computations, including scientific simulations, image and video processing, machine learning, and more.