An image display apparatus which displays a list of image data, comprises a selection unit configured to select a classification condition of image data; a designation unit configured to designate a sort condition associated with a sorting order of image data; a grouping unit configured to execute grouping of image data according to the classification condition selected by the selection unit; a determination unit configured to determine whether or not to execute the grouping according to the classification condition selected by the selection unit and the sort condition designated by the designation unit; and a control unit configured to control whether or not image data are grouped and displayed in accordance with a determination result of the determination unit.