弗朗茨二世（德语：Franz II，1768年2月12日－1835年3月2日），神圣罗马帝国的末代皇帝（1792年—1806年在位），奥地利帝国的第一位皇帝（1804年—1835年在位，称弗朗茨一世，德语：Franz I）。神圣罗马帝国皇帝利奥波德二世与皇后西班牙的玛利亚·路易莎之子。

弗郎茨二世就任神圣罗马帝国皇帝时，德意志城邦割据的情况已经十分严重，神圣罗马帝国皇帝早已失去实权。法国大革命和拿破仑的崛起加剧了德意志诸城邦的分化，帝国的前景并不乐观。第二次反法同盟结束后，神圣罗马帝国丧失了全部意大利领地，瑞士更成立赫尔维蒂共和国，掠夺了奥地利大公国在阿尔卑斯山中部的领地。第三次反法同盟后，弗郎茨二世在奥斯特里兹战役惨败，神圣罗马帝国首都维也纳被法军三次攻陷，奥地利军被全歼，双方签订普雷斯堡和约，莱茵邦联创立，弗郎茨二世保留皇帝头衔。在拿破仑称“法国人的皇帝”三个月后，弗朗茨亦自称奥地利皇帝以回应拿破仑，成立奥地利帝国。但再度被迫臣从于拿破仑和沙皇亚历山大一世的提尔西特同盟中。不可干涉第七次俄土战争。

Francis II (German:Franz II., Erwählter Römischer Kaiser) (12 February 1768 – 2 March 1835) was the last Holy Roman Emperor, ruling from 1792 until 6 August 1806, when he dissolved the Holy Roman Empire after the decisive defeat at the hands of the First French Empire led by Napoleon at the Battle of Austerlitz. In 1804, he had founded the Austrian Empire and became Francis I (Franz I.), the first Emperor of Austria (Kaiser von Österreich), ruling from 1804 to 1835, so later he was named the one and only Doppelkaiser (double emperor) in history. For the two years between 1804 and 1806, Francis used the title and style by the grace of God elected Roman Emperor, ever Augustus, hereditary Emperor of Austria and he was called the Emperor of both the Holy Roman Empire and Austria. He was also Apostolic King of Hungary and Bohemia as Francis I. He also served as the first president of the German Confederation following its establishment in 1815.