Agnes Kelly Robertson (25 December 1833 in Edinburgh – 6 November 1916) was a Scottish actress who became popular on the American stage.

Robertson was the ward of Charles Kean, and the juvenile lead in his theatre company.

In 1853, she and Boucicault left for America without Kean's permission and married in New York, creating a scandal.

[1] Robertson made her North American debut on 19 September 1853 at Montreal's Theatre Royal as Maria in Boucicault's The Young Actress.

[4] Robertson became Boucicault's second wife in 1853 and divorced him on 21 June 1888 by reason of "bigamy with adultery" after it was discovered that he had married another woman, Louise Thorndyke, bigamously.