空位時期  (1581年～1606年五月17日)

開端 終結 在位 1605年 1606年 

　　偽德米特裏一世（1581年－1606年5月17日），俄羅斯沙皇，在外國勢力支持下公開自稱皇子德米特裏·伊萬諾維奇，自1605年6月1日起擔任俄羅斯沙皇，死於1606年五月17日，歷史上認為其冒充了伊凡雷帝（伊凡四世）最小的兒子—德米特裏王子。

　　False Dmitriy I (Cyrillic Лжедмитрий; other transliterations:Dimitri, Dimitrii, Dimitriy, Dimitry, Dmitri, Dmitrii, Dmitry) was the Tsar of Russia from 21 July 1605 until his death on 17 May 1606 under the name of Dimitriy Ioannovich (Cyrillic Димитрий Иоаннович). He is sometimes referred to under the usurped title of Dmitriy II. He was one of three impostors who claimed during the Time of Troubles to be the youngest son of Ivan the Terrible, tsarevitch Dmitriy Ivanovich, who had supposedly escaped a 1591 assassination attempt. It is generally believed that the real Dmitriy was assassinated in Uglich and that this False Dmitriy's real name was Grigory Otrepyev, although this is far from certain.