Laurentian Codex () is a collection of chronicles that includes the oldest extant version of the Primary Chronicle and its continuations, mostly relating the events in the Northern Russia (Vladimir-Suzdal).

The codex was copied by the Nizhegorod monk Laurentius for the Prince Dmitry Konstantinovich in 1377. The original text he used was a lost codex compiled for the Grand Duke Mikhail of Tver in 1305. The account continues until 1305, but the years 898–922, 1263–83 and 1288–94 are for some reason omitted. The manuscript was acquired by the famous Count Musin-Pushkin in 1792 and subsequently presented to the Russian National Library in St Petersburg.