Military aircraft are airplanes used in warfare. General categories include

• Fighter aircraft
• Ground attack aircraft
• Bomber
• Tanker
• Trainer
• Transport
• Surveillance aircraft or reconnaissance, or air observation post

• List of military aircraft of the United States
• List of military aircraft of the Soviet Union and the CIS
• List of aircraft of the WW2 Armeé de l'Air
• List of aircraft of the WW2 Luftwaffe
• List of aircraft of the RAF
• Aircraft of the RAAF
• United States of America military aircraft designation systems
• USSR military aircraft designation systems
• British military aircraft designation systems