Peter Alexander Rupert Carington, 6th Baron Carrington of Upton (born June 6, 1919) was British Foreign Secretary (1979-1982) and secretary-general of NATO (1984-1988).

His family surname is spelled Carington (single r), whilst the peerage is Carrington (double r).

Lord Carrington first came to political prominence as Leader of the House of Lords in 1963, and when the Conservativess fell from power shortly afterwards, he became leader of the opposition in the House of Lords. As Foreign Secretary, he was in post when the Falkland Islands were invaded by Argentina, and resigned over the issue.

{| border="2" align="center" |- |width="30%" align="center"|Preceded by:
Rupert Carrington |width="40%" align="center"|Baron Carrington |width="30%" align="center" rowspan="2"|Followed by:
Current Incumbent |}

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