Alvise Gritti (also Ludovico or Lodovico Gritti, born 29 September 1480, died 1534, Hungarian: Gritti Alajos) was a Venetian politician. He was influential in the Hungarian Kingdom under the reign of King John I of Hungary. He was also a minister of the Ottoman sultan, and regent of Hungary from 1530 to 1534.[1] He was the natural son of Andrea Gritti, the Venetian Bailo of Constantinople during the reign of Sultan Bayezid II, who later became the Doge of Venice in 1523.[2]