Amazon Web Services (AWS) is a cloud computing platform offered by Amazon. It provides a variety of services, including computing power, storage, databases, machine learning, analytics, networking, security, and more. AWS allows individuals, businesses, and organizations to access computing resources on-demand without needing to invest in physical hardware infrastructure. It's known for its scalability, reliability, and flexibility, making it a popular choice for a wide range of applications and workloads, from small startups to large enterprises.