Albert of Riga, German bishop (b. 1165)
Albert of Riga or Albert of Livonia or Albrecht (German: Albert von Buxthoeven, Latvian: Alberts fon Buksthēvdens; c.1165 – 17 January 1229) was the third Bishop of Riga in Livonia. In 1201 he allegedly founded Riga, the modern capital of Latvia, and built the city's cathedral in 1221.

Albert headed the armed forces that forcibly converted the eastern Baltic region to Catholic faith, in the nature of a crusade that was undertaken while the Fourth Crusade was sacking the Christian Byzantine capital of Constantinople.