阿道夫。希特勒(德语：Adolf Hitler，1889年4月20日-1945年4月30日)，，纳粹党党魁，第二次世界大战与种族灭绝的核心人物。1889年出生于奥地利。：Nationalsozialistische Deutsche Arbeiterpartei ，缩写NSDAP)即纳粹党(德文：Nazi，即Nationalsozialismus的缩写)元首，德意志第三帝国元首兼帝国总理。
第一次世界大战时服役于巴伐利亚步兵团，他参加了著名的松姆河战役、阿腊斯战役、伊普莱斯战役并获得一级铁十字勋章，。希特勒于1919年加入纳粹党，1921年成为党首，，出狱后，他以泛德意志民族主义、反犹主义、反资主义、，1933年被任命为德国总理;1934年至1945年担任德国元首兼武装力量最高统帅。1939年指挥德国入侵波兰，爆发第二次世界大战并一度扫荡了整个欧洲。1945年4月，纳粹德国即将战败之时，希特勒与其女友爱娃·布劳恩临时结婚并在30日自杀于德国总理府地下指挥掩体中。
Adolf Hitler was an Austrian-born German politician and the leader of the Nazi Party (German: Nationalsozialistische Deutsche Arbeiterpartei (NSDAP); National Socialist German Workers Party). He was chancellor of Germany from 1933 to 1945 and dictator of Nazi Germany (as Führer und Reichskanzler) from 1934 to 1945. Hitler was at the centre of Nazi Germany, World War II in Europe, and the Holocaust.
Hitler was a decorated veteran of World War I. He joined the German Workers' Party (precursor of the NSDAP) in 1919, and became leader of the NSDAP in 1921. In 1923, he attempted a coup d'état in Munich, known as the Beer Hall Putsch. The failed coup resulted in Hitler's imprisonment, during which time he wrote his memoir, Mein Kampf (My Struggle). After his release in 1924, Hitler gained popular support by attacking the Treaty of Versailles and promoting Pan-Germanism, antisemitism, and anti-communism with charismatic oratory and Nazi propaganda. After his appointment as chancellor in 1933, he transformed the Weimar Republic into the Third Reich, a single-party dictatorship based on the totalitarian and autocratic ideology of Nazism.
Hitler's aim was to establish a New Order of absolute Nazi German hegemony in continental Europe. To this end, his foreign and domestic policies had the aim of seizing Lebensraum ("living space") for the Germanic people. He directed the rearmament of Germany and the invasion of Poland by the Wehrmacht in September 1939, resulting in the outbreak of World War II in Europe. Under Hitler's rule, in 1941 German forces and their European allies occupied most of Europe and North Africa. In 1943, Germany had been forced onto the defensive and suffered a series of escalating defeats. In the final days of the war, during the Battle of Berlin in 1945, Hitler married his long-time partner, Eva Braun. On 30 April 1945, less than two days later, the two committed suicide to avoid capture by the Red Army, and their corpses were burned.
Hitler's aggressive foreign policy is considered the main cause of the outbreak of World War II in Europe. His antisemitic policies and racially motivated ideology resulted in the deaths of at least 5.5 million Jews and millions of other people deemed racially inferior.