Look up backup in Wiktionary, the free dictionary.

Backup is the computing function of making copies of data to enable recovery from data loss.

Backup may also refer to:

• Backup (backup software), Apple Mac software
• Backup and Restore, Windows software
• Backup software, the software that performs this function
• List of backup software, specific software packages, loosely categorized
• Backup site, part of a disaster recovery plan

• Battery backup, the use of batteries to continue operation of electrical devices in the absence of utility electric power
• Backup battery, similar to above
• Backup generator, the use of a generator to achieve a similar purpose

• Backup band, a band who plays music in support of a lead musician
• Backing vocalist, one who sings in harmony with a "lead vocalist"
• "Back Up" (Danity Kane song), 2006
• "Back Up" (Pitbull song), 2004
• "Back Up" (Dej Loaf song), feat. Big Sean, 2015
• "Back Up" (Snoop Dogg song), 2015
• "Back Up", a song by Yeat from Afterlyfe, 2023

• Backup camera, a camera on the rear of a vehicle, used while moving backwards
• Back-up collision, a type of car accident
• Backing up, driving a vehicle in reverse gear

• Back-up goaltender, an ice hockey team's second-string goaltender
• Backup (TV series), a BBC series about a police Operational Support Unit
• Backup, a 2009 video game by Gregory Weir
• Backup, in sports, a substitute player for a player in the starting lineup

• All pages with titles beginning with Backup
• All pages with titles containing Backup

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