Dynamic typing is a feature of some programming languages where the type of a variable is determined at runtime rather than at compile time. This means that you can assign different types of values to the same variable during the execution of a program. For example, a variable can hold an integer value one moment and a string value the next. Languages like Python and JavaScript utilize dynamic typing, allowing for more flexibility in coding. However, this can also lead to potential errors if a variable is used inappropriately, as the interpreter may not catch type-related issues until the program is running.