Science

• Adenosine monophosphate, a nucleotide found in RNA;
• Ampere, a unit of electrical current;
• Amplifier, a device that increases the amplitude of a signal;
• Antimicrobial peptides, immune system peptides;

Organizations

• Alliance of the Presidential Majority (Alliance pour la majorité présidentielle, AMP), a political platform in the Democratic Republic of Congo;
• Americans for Medical Progress, a medical research charity;
• Ameriprise Financial, a finance company spun off from American Express in 2005;
• AMP Incorporated, a manufacturer of electrical connectors which was taken over by Tyco Electronics;
• AMP Limited, an Australian financial services company;

Computers

• AMP packages, software suites consisting of Apache, MySQL and PHP;
• Ampersand, a printable character;

Entertainment

• Adobe Media Player, a media player from Adobe;
• Adventures in Motion Pictures, a UK ballet company;
• Amp (band), a rock and electronic band;
• AMP Radio Networks, a Malaysian-based radio company;
• Amp (TV series), a music video show on MTV;
• Australian Music Prize, an annual Australian music award;

Other

• Advanced Manufacturing Park, a manufacturing technology park in the United Kingdom;
• Advanced Mobile Phone System, a first-generation analog cellular technology;
• Air Member for Personnel, a senior appointment in the Royal Air Force;
• AMP Energy, a drink made by PepsiCo;
• Amplified Bible, a translation of the Bible;
• Ampoule, a medical container;
• Asset Management Platform, a GPS based telemetry system for rail car and locomotive tracking and protection from RFTrax;
• AutoMag (pistol), an automatic Magnum pistol;