Founded in 2000 by Lluís Vilamajó, the Orfeó Català Cor de Noies Girls' Choir is made up of 37 singers aged between 16 and 25 years old, who mostly started choral singing in the Orfeó Català children’s choirs. Currently, Montserrat Meneses is the conductor and Maria Mauri is the pianist. The clarity, agility and softness of their voices gives their concerts a unique and appealing sound. But performances by the Cor de Noies go beyond vocal excellence, delving into new experiences that explore other areas, such as incorporating scenic design.

The choir has worked with conductors J. Busto, P. L. Biosca, X. Puig, M. Minkowski, E. van Tiel, M. Valdivieso, N. Huynh, J. Nott, A. Salado, G. Dudamel and Z. Mehta, and has collaborated with the Franz Schubert Filharmonia, the Orquestra Simfònica de Barcelona, Vespres d’Arnadí, Les Musiciens du Louvre, Orquestra Simfònica del Vallès, Jove Orquestra Nacional de Catalunya, Gustav Mahler Jugendorchester, the Mahler Chamber Orchestra and the Israel Philharmonic Orchestra. The Cor de Noies has also collaborated with the singer Noa, and performed with the Basque company KuKai Dantza in the show Erritu (2020).

In 2023, the choir performed The pulse in the inauguration of Grec Festival, with the Australian contemporary circus company Gravity and Other Myths, before taking part in the subsequent international tour (5 July to 1 August, with a total of thirteen performances): Complètement Cirque Festival in Montréal (Canada), Festival Theatre in the Kingfisher Club in Galway (Ireland), and La Strada Graz Festival (Austria). It is also worth noting the Palau de la Música concert of Caroline Shaw’s Its motion keeps and Jordi Domènech's Pianto della Madonna, together with guest choirs Exaudio, Aglepta and Nàiades, and a performance of Debussy’s La demoiselle élue with the Orquestra Simfònica de Barcelona i Nacional de Catalunya at the Auditori de Barcelona, under the baton of Ludovic Morlot.

In 2024, a highlight was the concert performed by the Cor de Noies together with Lluís Vilamajó, as part of a project led by the director of the Escola Coral, Pablo Larraz, which regularly features Vilamajó as a guest conductor of the institution’s choirs. The concert included the world premiere of a piece written specifically for the ensemble by Mariona Vila. Also noteworthy was the concert featuring works by Ola Gjeilo, with the composer himself at the piano, alongside the Orfeó Català and the choirs of the Escola Coral, as well as their participation in the Fiesta de la Música Coral, the concert conducted by Basilio Astúlez, and the concert with the Primfila, primfila program, conducted by Montserrat Meneses.

In 2025, highlights include the concert with the OBC at L'Auditori, conducted by Gemma New, performing The Planets by Gustav Holst; the exchange with the Danish choir Nordlys in Copenhagen; and participation in The Veil of the Temple by John Tavener, alongside the Orfeó Català and Cor Jovel de l'Orfeó Català, at the Grec Festival.

The 2025-26 season will include the première of Els set somnis de Gaudí by Olivia Pérez-Collellmir, conducted by Marin Alsop and performed alongside the Palau Cor de Cambra chamber choir, the Orfeó Català Cor Jove and Philharmonia Orchestra, and the first-ever performance of El clam de la Terra by Mariona Vila. High points also include the performance of Gustav Holst’s The Planets with the Orquestra Simfònica del Vallès and the concert conducted by Martina Batić with the Palau Cor de Cambra chamber choir.