Kasthuriraani d/o Patto (Tamil: கஸ்தூரி பட்டு, romanized: Kastūri paṭṭu; born 9 August 1979) is a Malaysian politician from the Democratic Action Party (DAP), a component party of the Pakatan Harapan (PH) opposition coalition. She served as the Member of Parliament (MP) for Batu Kawan from May 2013 to November 2022. She has served as the Assistant International Secretary of DAP since March 2022 and President of the Parliamentarians for Global Action (PGA) since December 2021 as well as Member of the Steering Group for the International Panel of Parliamentarians for the Freedom of Religion and Belief.