1. See also

External may refer to:

• External (mathematics), a concept in abstract algebra
• Externality, in economics, the cost or benefit that affects a party who did not choose to incur that cost or benefit
• Externals, a fictional group of X-Men antagonists

See also

• {{lookfrom|External}}
• Internal (disambiguation)

• Aerial Bridge
• Aerial cartwheel
• Aerial combat
• Aerial Common Sensor
• Aerial (dance move)
• Aerial Distributors
• Aerial Distributors Distributor Wing
• Aerial Experimental Association
• Aerial Experiment Association
• Aerial Ferry Bridge
• Aerial firefighting
• Aerial image
• Aerial imagery
• Aerial Images
• Aerial insert
• Aerial interdiction
• Aerial lift
• Aerial Lift Bridge
• Aerial Medical Service
• Aerial Pandemonium Ballet
• Aerial perspective
• Aerial Perspective
• Aerial Phenomena Research Organization
• Aerial photograph
• Aerial photographs