United People's Democratic Front (abbreviated as UPDF; Bengali: ইউনাইটেড পিপলস ডেমোক্রেটিক ফ্রন্ট; [junaɪʈeɖ pipɔls ɖemokræʈik frɔnʈ]) is a regional political party based in the Chittagong Hill Tracts of Bangladesh.

The United People's Democratic Front was founded on 26 December 1998 at a conference in Dhaka.

[citation needed] In November 2006, Prasit Bikash Khisha was elected to presidency by the party's central committee during a congress in Dhaka.

[citation needed] The UPDF took part in the eighth national parliamentary elections in 2001 and though failed to win in any of the two seats in CHT it contested, the party received a considerable number of votes cast, to the surprise of many analysts.

[citation needed] In July 2021, the party's Joan Chakma led a contingent of Buddhist-Chakmas to Suandrapara, a village of the Bawm Christian convert community, where they issued threats and conducted two violent raids leading damaging a church.