Chen Chien-nien (, Puyuma: Adulumau Daliyalrep; born 10 October 1947) is a Taiwanese former politician who served as the Magistrate of Taitung from 1993 to 2001 and Minister of the Council of Aboriginal Affairs from 2002 to 2005.
Born in Taitung City, Chen entered politics in 1981 as Taitung County councillor representing the Kuomintang (KMT). He served as Magistrate of Taitung from 1993 to 2001. A member of the Puyuma tribe, he is the only indigenous politician to have served as a county magistrate in Taiwan.
In 2002, Chen quit the KMT to accept the cabinet-level Minister of the Council of Aboriginal Affairs post in Chen Shui-bian's Democratic Progressive Party (DPP) administration. He resigned in 2005 due to a vote-buying charge, whilst continuing to maintain his innocence. Following a failed appeal to the Supreme Court in 2012, he was sentenced to nine months in jail.
His daughter, Asenay Daliyalrep, is currently serving as a member of the Legislative Yuan.