• donig,
• dancy,
• deniy,
• downmy,
• downd,
• deiny,
• donnot,
• monny,
• downn,
• donei,
• doind,
• deney,
• donit,
• donn,
• downa,
• donot,
• diney,
• ronny,
• doont,
• sonney

• downy,
• Donya,
• Doane,
• downey,
• Donn,
• donee,
• Donnie,
• Dom,
• downie,
• Dona,
• doyenne,
• don,
• Donahue,
• donahoo,
• Doan,
• doyon,
• donoho,
• Donaho,
• donna,
• donahey,
• done,
• doyen,
• doney,
• Donahoe,
• down,
• Donohue,
• Donohoe,
• donne,
• do in.

The plural of the "Donny" can be the "donnies".

The singular of the "Donny" can be the "Donny".