Adelaide of Bohemia (between 1105 and 1107–1140) – Old Rus Princess, granddaughter of Grand Prince Sviatopolk Iziaslavych of Kyiv, wife of Sobĕslav I, Duke of Bohemia.
Was a daughter of Duke Álmos of Hungary, brother of Koloman I the Book-lover, King of Hungary, and Peredslava Sviatopolkivna, daughter of Grand Prince Sviatopolk Iziaslavych of Kyiv. In 1123 she married Sobĕslav I, Duke of Bohemia, and of this marriageDukes of Bohemia Sobĕslav II and Václav II were born. Had an influence on her husband in matters of state governance.
