赤塔州（俄语：Чити́нская о́бласть）位于西伯利亚东南部，属俄罗斯联邦主体之一。面积431,500平方公里，人口1,155,346 (2002年)，首府赤塔。

2008年3月1日与阿加布里亚特自治区合并成外贝加尔边疆区。

Chita Oblast (Russian:Чити́нская о́бласть, tr.Chitinskaya oblast;IPA: [tɕɪˈtʲinskəjə ˈobləsʲtʲ]) was a federal subject of Russia (an oblast) in southeast Siberia, Russia. Its administrative center was the city of Chita. It had extensive international borders with China (998 km) and Mongolia (868 km) and internal borders with Irkutsk and Amur Oblasts, as well as with the Buryat and the Sakha Republics. Its area was 431,500 square kilometers (166,600 sq mi). Population: 1,155,346(2002 Census);1,377,975(**** Census).