Jill Rook (married name Mills) is a former international table tennis and tennis player from England.

[1] Rook won a silver medal at the 1956 World Table Tennis Championships in the Corbillon Cup (women's team event) with Diane Rowe and Ann Haydon for England.

[2][3] Rook also won a gold medal in the team event at the European Table Tennis Championships and won two English National Table Tennis Championships titles.

Rook appeared at the Wimbledon tennis championships from 1955 to 1965.

This biographical article relating to a British table tennis figure is a stub.