Proton (disambiguation)

A proton is a subatomic particle.

Proton may also refer to:

In chemistry

The following ions may be losely referred as proton:

• Hydron (chemistry) H⁺
• Hydronium/hydroxonium H₃O⁺ (especially in biochemistry)

In technology

• Proton (rocket), Russian unmanned space vehicle design
• Proton (bank card), used for payments of small amounts
• Proton satellite, Soviet satellite
• Protei-5 Russian diver-rider called a "Proton", Russian diver propulsion vehicle
• Proton, a make of rebreather breathing set made by Siebe Gorman

In business

• Proton (carmaker), a Malaysian car producer
• Proton FC, a team in the Malaysian Premier League sponsored by the carmaker
• Proton Bank, an investment bank in Greece
• Proton Radio, an internet electronic music station

Other uses

• Proton, a geologic province of a craton that is between 1.6 and 2.5 billion years old, which developed in the Proterozoic Eon
• USS Proton (AG-147), a US Navy tank landing ship