Wierland County (German: Kreis Wierland, German: Wierlandische Kreis, Estonian: Viru kreis, Russian: Vezenbergsky uyezd, Russian: Virlyandsky uyezd) was one of the four counties of the Russian Empire located in the Governorate of Estonia. It was situated in the eastern part of the governorate (in present-day northeastern Estonia). Its capital was Rakvere (Wesenberg). The territory of Kreis Wierland corresponds to most parts of the present-day Ida-Viru and Lääne-Viru counties and a small part of Jõgeva County.
At the time of the Russian Empire Census of 1897, Kreis Wierland had a population of 120, 230. Of these, 90.3% spoke Estonian, 7.2% Russian, 1.9% German, 0.1% Polish, 0.1% Yiddish, 0.1% Latvian and 0.1% Finnish as their native language.
- "Эстляндская губерния" (in Russian). Руниверс. Retrieved 22 December 2013.
- "Ajaloolise Virumaa (Wierland) lühitutvustus" (in Estonian). Estonian Manors. Retrieved 22 December 2013.
- "Первая всеобщая перепись населения Российской Империи 1897 г. Распределение населения по родному языку и уездам 50 губерний Европейской России" (in Russian). Демоскоп Weekly. Retrieved 22 December 2013.