D.K.T.W.K. Palangasingh (born 26 October 1993) is a Sri Lankan male weightlifter, competing in the 56 kg category and representing Sri Lanka at international competitions. He participated at the 2014 Commonwealth Games in the 56 kg event and at the 2018 Commonwealth Games competing in the 62kg event. Palangasinghe represented Sri Lanka at the 2022 Commonwealth Games in Birmingham, England.