大各德县或大吉德县（英文：Grand Gedeh County）是利比里亚15县之一，首府绥德鲁 (英文:Zwedru).

利比里亚县级行政区 伯米 · 邦 · 巴波卢 · 大巴萨 · 大角山 · 大各德 · 大克鲁 · 罗发 · 马及比 · 玛丽兰 · 蒙特塞拉多 · 宁巴 · 里弗塞斯 · 吉河 · 习诺

Grand Gedeh is a county in the eastern portion of the West African nation of Liberia. One of 15 counties that comprise the first-level of administrative division in the nation, it has three districts. Zwedru (formerly Tchien) serves as the capital with the area of the county measuring 10,484 square kilometres (4,048 sq mi). As of the 2008 Census, it had a population of 126,146, making it the ninth most populous county in Liberia.