Ali Lee Kai-sum is a Hong Kong actress and television host contracted to TVB.

The TVB Anniversary Award for Best Actress in a Leading Role is one of the TVB Anniversary Awards presented annually by Television Broadcasts Limited (TVB) to recognize an actress who has delivered an outstanding performance in Hong Kong television dramas throughout the designated year. This award is usually reserved to be one of the last awards presented, and is one of the most premier and publicized awards of the ceremony. An actress who wins Best Actress is referred to as the TV Queen (視后). The leading contenders of the award, or those who reach the top 5 during nomination, are generally actresses currently considered as the fadans of TVB.