Barbara Amiel Black, Baroness Black of Crossharbour (born Barbara Amiel), is a journalist, and the wife of newspaper magnate Lord Black of Crossharbour. She was a longtime columnist for Maclean's Magazine, and has served as a Vice-President of Hollinger.

She is Jewish, and has been outspoken about what she sees as anti-Semitism, anti-Israeli sentiment, and its acceptability in some circles. In December 2001 she caused a furore by comments in The Spectator about anti-Israel remarks by a French diplomat, unnamed in the piece; this picked up on a previous Petronella Wyatt column about London's chattering classes. In 2003 she attacked BBC current affairs coverage, claiming that it has been seen as a 'bad joke' for decades.

In 1992 she became notorious for a defence of David Irving. Her memoir, Confessions, was published in 1979.

Lady Black lost her position as a columnist on the Daily Telegraph in mid-2004, after putting the phone down on its editor Martin Newland.