Dmytro Borysovych Tymchuk (Ukrainian: Дмитро́ Бори́сович Тимчу́к; 27 June 1972 – 19 June 2019) was a member of parliament of Ukraine, a Ukrainian military expert and blogger, an officer of the Ukrainian military reserve (Lieutenant Colonel), and one of the coordinators of the Information Resistance blog. During the ongoing 2014 pro-Russian unrest in Ukraine, he became one of the most popular Ukrainian online activists and was extensively cited on the situation in the country. In 2014 Tymchuk was elected to the Ukrainian parliament for the People's Front.