A73 or A-73 may refer to:

• Benoni Defense, in the Encyclopaedia of Chess Openings

Roads

• A73 motorway (Netherlands)
• A73 road, in the United Kingdom
• Quebec Autoroute 73 in Quebec
• Autov a A-73, a Spanish motorway
• Bundesautobahn 73, a German motorway also called A 73

Animals

• A73, an orca more commonly known as Springer (orca)

See also

• List of highways numbered 73

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