An Async Function is a special type of function in programming that allows for asynchronous operations. This means that the function can perform tasks without blocking the execution of other code. When an async function is called, it returns a promise, which represents a value that may be available now, or in the future, or never. Inside an async function, you can use the await keyword to pause the execution until a promise is resolved. This makes it easier to write and read code that deals with operations like fetching data from a server or reading files, as it allows developers to handle these tasks in a more straightforward manner.