The SR-71 is a reconnaissance aircraft built by Lockheed.

SR-71 may also refer to:

• SR-71 (band), an American alternative rock band
• State Route 71, in the United States; See List of highways numbered 71
  • Alabama State Route 71
  • Arizona State Route 71
  • California State Route 71
  • Colorado State Highway 71
  • Connecticut Route 71
  • Delaware Route 71
  • Florida State Road 71
  • Georgia State Route 71
  • Idaho State Highway 71
  • Illinois Route 71
  • Indiana State Road 71
  • K-71 (Kansas highway); see List of Kansas numbered highways
  • Maryland Route 71 (former)
  • Massachusetts Route 71
  • M-71 (Michigan highway)
  • Missouri Route 71 (1922) (former)
  • Nebraska Highway 71
  • Nevada State Route 71 (former)
  • New Jersey Route 71
  • New York State Route 71
  • North Carolina Highway 71
  • Oklahoma State Highway 71
  • Pennsylvania Route 71 (former)
  • South Carolina Highway 71
  • South Dakota Highway 71
  • Tennessee State Route 71
  • Texas State Highway 71
  • Utah State Route 71
  • Virginia State Route 71
  • West Virginia Route 71
  • Wisconsin Highway 71
  • Wyoming Highway 71

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