A female given name, form of katherine or catherine.See examples of katie used in a sentence.Katie piper - kate elizabeth sutton is a multi-talented english writer, activist, television presenter, and model from andover, hampshire.Katie archibald is a prominent scottish and british racing cyclist …Katie katie is an english feminine name.It is a form of katherine, kate, caitlin, kathleen, katey and their related forms.[1] it is frequently used on its own.