Charles I, also known as Charles Robert (Hungarian: Károly Róbert; Croatian: Karlo Robert; Slovak: Karol Róbert; 1288 – 16 July 1342) was King of Hungary and Croatia from 1308 to his death.
Karl 1., også kendt som Karl Robert (ungarsk: Károly Róbert}; kroatisk: Karlo Robert; slovakisk: Karol I. Róbert), (1288 – 16. juli 1342) var konge af Ungarn og Kroatien fra 1308 til 1342.