Adder (disambiguation)

Vipera berus, the common European adder, is a snake found in Europe and northern Asia.

Adder may also refer to:

AA-12 Adder, a Russian air-to-air missile Adder (electronics), an electronic circuit designed to do addition Adder Technology, a manufacturing company Armstrong Siddeley Adder, a late 1940s British turbojet engine HMS Adder, any of seven ships of the Royal Navy Any of several groups of venomous snakes USS Adder, a US submarine

See also Addition, a mathematical operation