Thiouracil may refer to:

• 2-Thiouracil
• 4-Thiouracil

• Vomer flap surgery
• Vomero
• Vomeronasal
• Vomeronasal cartilage
• Vomeronasal organ of Jacobson
• Vomero-nasal organs of Jacobson
• VOMI
• Vomifoliol 4'-dehydrogenase
• Vomifoliol dehydrogenase
• Vomilenine reductase
• Vomit center
• Vomit comit
• Vomited
• Vomiting
• Vomiting blood
• Vomiting center
• Vomiting reflex
• Vomit Island
• Vomit Launch
• Vomito negro
• Vomito Negro (band)
• Vomitoria
• Vomitory (band)
• Vomitoxin
• Vom Kriege