Back چوهان ادولف اى ARZ Йохан Адолф I (Саксония-Вайсенфелс) Bulgarian Joan Adolf I de Saxònia-Weissenfels Catalan Johann Adolf I. (Sachsen-Weißenfels) German Ιωάννης Αδόλφος Α΄ της Σαξονίας-Βάισενφελς Greek Juan Adolfo I de Sajonia-Weissenfels Spanish Jean-Adolphe Ier de Saxe-Weissenfels French Giovanni Adolfo I di Sassonia-Weissenfels Italian Johan Adolf I van Saksen-Weißenfels Dutch Jan Adolf I Polish
Johann Adolf I, Duke of Saxe-Weissenfels (2 November 1649, in Halle – 24 May 1697, in Weissenfels), was a duke of Saxe-Weissenfels-Querfurt and member of the House of Wettin. He was the first son of Augustus, Duke of Saxe-Weissenfels, and his first wife, Anna Maria of Mecklenburg-Schwerin.