Proton (disambiguation)

A proton is a subatomic particle.

Proton may also refer to:

In chemistry

Proton, the hydron ion (notated )
Proton, hydronium (also called hydroxonium) ion (notated )
Proton-pump inhibitor, a group of drugs
Proton conductor, an electrolyte
Proton-coupled electron transfer, a chemical reaction mechanism
Proton spectrum, the nuclear magnetic resonance spectrum of the <sup>1</sup>H nucleus

Proton Competition, a German auto racing team
Proton F.C., football club in the Malaysian Premier League sponsored by the carmaker that existed between 1986 and 2009
Proton Radio, an internet electronic music station

Ozone Proton, a French paraglider design
Protei-5 Russian diver propulsion vehicle called a "Proton", Russian diver propulsion vehicle
Proton (rocket family), Russian uncrewed space vehicle design
Proton-K, a rocket
Proton-M, a rocket
Proton satellite, Soviet satellite
Proton-transfer-reaction mass spectrometry, a technique to monitor volatile organic compounds online
Proton (software), a Wine-based compatibility tool for Linux
Products of the company Proton AG
Proton Mail, an encrypted email service
Proton VPN, an encrypted VPN service
Proton Pass, an encrypted password manager
Proton Drive, an encrypted cloud storage service
Proton Calendar, an encrypted digital calendar
Proton Wallet, an encrypted digital wallet
Proton docs, an encrypted document writing tool
Original name of the BBC Micro microcomputer
Proton, a model of diving equipment made by Siebe Gorman

Proton AG, a Swiss company offering privacy-focused online services
Proton (debit card), a discontinued electronic debit card from Belgium
Proton Bank, an investment bank in Greece
Proton Electronic, a Taiwanese manufacturer of consumer audio and video equipment founded in 1964
Proton Holdings, a Malaysian car producer

USS Proton (AG-147), a US Navy tank landing ship
Professor Proton, a fictional scientist in The Big Bang Theory television series universe
Proton (band), an Australian rock band