|1971 British Indoor Championships|
|Date||23 – 30 October|
|Category||Grand Prix (B Class)|
|Draw||32S / 16D|
|Surface||Carpet / indoor|
|Ilie Năstase |
|Billie Jean King|
|Bob Hewitt / Frew McMillan|
|Françoise Dürr / Virginia Wade|
The 1971 Embassy British Indoor Championships was a combined men's and women's Grand Prix tennis tournament played on indoor carpet courts. The event was categorized as a B Class tournament and was the 4th edition of the British Indoor Championships in the Open era. The tournament took place at the Wembley Arena in London in England and ran from 23 October through 30 October 1971.
- It was Năstase's 6th title of the year and the 7th of his open era career.