Cosmo Nicknames:

• Cos
• Cosy
• Coz
• Momo
• Coco
• Cosmic
• Mo
• Cosmo the Great
• Cosmo the Wise
• Cosmo the Philosopher

Cosmo Variants:

• Cosimo
• Cosma
• Cozmo
• Cozimo
• Cozma
• Cosmas
• Kosmo
• Kosmas
• Kosimo
• Kosma