• Youngia Cassini, 1831 [Family: Asteraceae]
• Youngia Dlabola, 1958 (uncertain) [Family: Cicadellidae]
• Youngia Jones & Kirkby, 1886 † [Family: Youngiellidae]
• Youngia Lindström, 1886 † [Family: Hammatocnemidae]
• Youngia Zheng, 1994 † (unaccepted) [Family: Spalacidae]
• Youngia japonica (L.) DC.
• Youngia thunbergiana DC. accepted as Youngia japonica (L.) DC.
• Youngiada Dlabola, 1959 (uncertain)