Margarita Graddon or Mrs Gibbs (born 1804) was a British popular singer.

She was trained by Tom Cooke and then sang in the provinces until she appeared at Vauxhall Gardens in 1822, later in Dublin, and then at Drury Lane Theatre in 1824 in The Marriage of Figaro.

The same year she appeared in Henry Bishop's version of Der Freischütz.

[2] In June 1826, she performed a noted rendition of Mozart's Requiem in honor of the death of composer Carl Maria von Weber.

[3] In 1827 she married a pianoforte maker named Alexander Gibbs.