Rani Mangammal (Mangamma)(died 1705) was a queen regent of the Madurai Nayak kingdom (in present-day Madurai, India) during the minority of her grandson Vijaya Ranga Chokkanatha in 1689—1704. She was a popular administrator and is still widely remembered as a maker of roads and avenues, and a builder of temples, tanks and choultries with many of her public works still in use. She is also known for her diplomatic and political skills and successful military campaigns. The capital of Madurai Kingdom during her times was Tiruchy.