Adelaide of Hungary (c. 1040 – 27 January 1062) was the only daughter of Andrew I of Hungary of the Arpad dynasty. It is disputed whether her mother was Anastasia Yaroslavna, daughter of Yaroslav the Great, Prince of Kiev, or another unknown first wife of Andrew I.

She was the second wife of Vratislav II of Bohemia, whom she married in 1057. She was a good dynastic match for Vratislav, as he profited from the alliance with her father. They had four children, including Bretislaus II of Bohemia and Judith Premyslid. Vratislav became duke in 1061, after death of his brother, but Adelaide was not duchess for a long time.

She preceded her husband in death; he remarried shortly afterward to Świętosława of Poland, and was finally crowned as the first King of Bohemia in 1085.

Adelaide of Hungary Arpad dynasty Born: c. 1040 Died: 27 January 1062
Royal titles
Preceded by Ida of Wettin	Duchess consort of Bohemia 1061–1062	Succeeded by Świętosława of Poland

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