阿提卡（Αττική）是希腊首都雅典所在的行政大区，也是古希腊对这一地区的称呼。

从行政区划上看，阿提卡大区北接中部大区的维奥蒂亚，西接伯罗奔尼撒的科林斯。在地理上，它是一个伸入爱琴海的半岛，按照柏拉图的陈述，它被帕尔奈斯山脉（Parnes，今帕尔奈特斯山脉）从希腊大陆分隔开，向西则连接着科林斯地峡。半岛上的地形丰富，有丰饶的高地山谷、水流丰富的谷地、贫瘠的坡地以及肥沃的沿海和内陆平原。气候为典型的地中海气候，降水不够充裕（约400毫米），是制约农业的主要因素。南部褶皱的山地出产银矿和铅矿，自从青铜时代起就被开采。

Attica (Greek:Αττική, Attikḗ or Attikī́; Ancient Greek: [atːikɛ̌ː] or Modern: [atiˈci]) is a historical region that encompasses the city of Athens, the capital of Greece. The historical region is centered on the Attic peninsula, which projects into the Aegean Sea. The modern administrative region of Attica is more extensive than the historical region and includes the Saronic Islands, Cythera, and the municipality of Troizinia on the Peloponnesian mainland. The history of Attica is tightly linked with that of Athens, which, from the classical period, was one of the most important cities in the ancient world.