譚得志（英語：Tam Tak-chi，藝名快必，1973年2月2日—），香港泛民主派政治人物、電臺節目主持。佢喺香港大學中文系畢業，後來喺香港中文大學崇基學院修讀神學。近年投身社會運動，對抗基督教嘅保守、親建制勢力。2013年加入人民力量，有份參與雨傘運動、2015年香港區議會選舉、2016年香港立法會選舉，現任人民力量副主席。
Tam Tak-chi (born February 2, 1973) is a Hong Kong pan-democratic politician and radio host. He graduated from the Chinese Department of the University of Hong Kong and later studied theology at Chung Chi College, Chinese University of Hong Kong. In recent years, he has joined the social movement to fight against the conservative and pro-establishment forces of Christianity. He joined the People Power in 2013 and participated in the Umbrella Movement, the 2015 Hong Kong District Council Election, and the 2016 Hong Kong Legislative Council Election.