Andrea Pellegrini (born 7 November 1975 in Aarhus) is a Danish mezzo-soprano.

Andrea Pellegrini started playing the piano at the age of seven and received vocal training at 17.

She made her debut at the Royal Danish Theatre in 2006 as Rosina in The Barber of Seville.

She has also sung Cherubino in Mozart's The Marriage of Figaro, Idamante in Idomeneo, Mercedes in Bizet's Carmen, Suzuki in Puccini's Madama Butterfly, and Adalgisa in Bellini's Norma in productions at the Royal Danish Theatre, Danish National Opera, and Opera Hedeland.

She has also performed as a soloist in concerts: Andrea Pellegrini has also recorded several CDs with Martin Hall, performed with the band tv·2, and co-founded the tango orchestra The Piazzolla Orchestra.