An "Input Element" is a fundamental component in web forms that allows users to enter data. It can take various forms, such as text boxes, checkboxes, radio buttons, and dropdown menus. These elements are essential for collecting user information, such as names, email addresses, and preferences. In HTML, input elements are created using the `<input>` tag, which can be customized with attributes like `type`, `name`, and `value`. This flexibility enables developers to design interactive forms that enhance user experience on websites and applications, making it easier for users to submit their information effectively.