Fido

Fido refers to:

Dog

• Fido (dog), a famous dog and symbol of loyalty

Art, entertainment, and media

Fictional character

• Fido Dido, a cartoon character associated with the soft drink 7-Up

Film

• Fido (film), a Canadian comedy about a zombie named "Fido"

Music

• Fido (band), a punk/rock band from Melbourne, Australia
• Fido, one half of Alexis & Fido, a reggaeton duo

Visual art

• Fairfield Industrial Dog Object, or Fido, a sculpture in Fairfield, Victoria, Australia

Internet and communication

• FIDO Alliance, an industry consortium working on internet authentication mechanisms
• Fido Solutions, a Canadian cellular provider owned by Rogers, Inc.
• FidoBBS or FIDO, a bulletin board software package
• FidoNet, a worldwide bulletin board system computer network

Military and space

• Fido Explosives Detector, a portable explosives detector
• Fire Direction Officer or FDO, the third ranking officer in a US artillery battery
• Flight Dynamics Officer, a position in ground control of space missions
• Fog Investigation and Dispersal Operation, a fog dispersal system developed in the Second World War
• Mark 24 Mine or FIDO, a U.S. acoustic homing torpedo used during World War II
• Roger Grosjean, an MI5 double agent (codename Fido) in World War II