Unduk Ngadau 2021, the 61st edition of the Unduk Ngadau, was held on 31 May 2021 at , , Penampang, Sabah. Maya Hejnowska of Api-Api was crowned by the outgoing titleholder, Francisca Ester Nain of Karambunai at the end of the event. Different from the Unduk Ngadau editions of the past years, this edition was held with a strict health protocol as it was still in the era of the COVID-19 pandemic.
Through online selection, judges selected 21 finalists from the 79 delegates.
79 delegates in total competed through online platform.