Adder

Adder may refer to:

Snakes:

• Any of several groups of venomous snakes of the Viperidae family, including Vipera berus, the common European adder, found in Europe and northern Asia
• Acanthophis sp., death adders, a genus of elapid snakes found in Southeast Asia and Australia
• Heterodon sp., hog-nosed snakes, a genus of harmless colubrid snakes found in North America
• Agkistrodon contortrix mokasen, the northern copperhead, a venomous viper found in the eastern United States

Other:

• Adder (Farthing Wood), a character from The Animals of Farthing Wood
• Adder (electronics), an electronic circuit designed to do addition
• AA-12 Adder, a Russian air-to-air missile
• HMS Adder, any of seven ships of the Royal Navy
• USS Adder (SS-3), an early US submarine
• Adder Technology, a KVM and A/V Manufacturing company
• Adder, a fictional commanding officer in the Advance Wars video games