Agoston Haraszthy, Hungarian-American businessman, founded Buena Vista Winery (died 1869)

Agoston Haraszthy was a Hungarian American nobleman, adventurer, traveler, writer, town-builder, and pioneer winemaker in Wisconsin and California, often referred to as the "Father of California Wine", alongside Junípero Serra, as well as the "Father of California Viticulture," or the "Father of Modern Winemaking in California". One of the first men to plant vineyards in Wisconsin, he was the founder of the Buena Vista Winery in Sonoma, California, and an early writer on California wine and viticulture.

Buena Vista Winery is a winery located in Sonoma, California, United States. It is the second oldest winery in California after the D'Agostini Winery, which was founded a year prior in 1856. It was founded by Agoston Haraszthy in 1857. The winery is located on its original grounds, just east of Sonoma, California.