Fallback is a contingency option to be taken if the preferred choice is unavailable. It may refer specifically to:

• A signal of inferior quality in HD Radio
• Fallback font in graphic user interface and typesetting
• Fallback voting
• A feature of a modem protocol
• Happy Eyeballs (also called Fast Fallback), an IP networking technique

Other uses[edit]

• Fallback or Outback (Transformers), a fictional character
• "Fall Back", a single from Dear Jayne R&B/pop trio