Naroa Intxausti studied piano and voice at the Bilbao Conservatory of Music and graduated with distinction. Master classes with Teresa Berganza, Isabel Rey and Dalton Baldwin, among others, complete her education. She has also won numerous prizes at international competitions. Since her opera debut in 2003 as Bastienne (Bastien and Bastienne), she has interpreted central roles of the lyrical soprano repertoire, namely Marzelline (Fidelio), Susanna (Le Nozze di Figaro), Musetta (La Bohème), Sandrina (La finta giardiniera), Clorinda (La Cenerentola) or Frasquita (Carmen).

As a sought-after concert singer, she has appeared in Beethoven's 9th Symphony, in the Messiah (Handel) and Christmas Oratorio (Bach), in Haydn's Seasons, in Carmina Burana (Orff), Elias (Mendelssohn), in the Oratorio de Noël (Saint Saens) and in Exsultate, jubilate (Mozart), among others.

She has worked with numerous renowned conductors and directors, including Michael Güttler, Michael Hofstetter, Christophe Rousset, Giancarlo del Monaco, Peter Mussbach, Emilio Sagi, Balázs Kovalik and Calixto Bieito.

Guest engagements have taken her to the OLBE-ABAO in Bilbao, the Gran Teatre del Liceu Barcelona, the Berlin Philharmonic, the Alte Oper Frankfurt, the Kammeroper Schloss Rheinsberg, the Konzerthaus Berlin, the Palau de la Música Catalana, the Mecklenburgisches Staatstheater, Saarländisches Staatstheater or the Schwetzinger Festspiele.

In a production of the Staatsoper Unter den Linden at the Teatro de la Maestranza in Seville, she sang the part of "Mizi" in the Spanish premiere of the opera Der ferne Klang (Schreker) under the direction of Pedro Halffter.

From 2012 to 2016 she was a permanent member of the Stadttheater Gießen, where she was among others as Galatea (Acis and Galatea), Susanna (Le Nozze di Figaro), Donna Anna (Don Giovanni), Ännchen (Der Freischütz), Poppea (Agrippina), Ilia (Idomeneo), Berenguera (Riccardo I), Servilia (La Clemenza di Tito), Linda (Linda di Chamounix), Zulema (La Conquista di Granata) or Anna (La Dame blanche). She has also recorded the opera Oberto under the direction of Michael Hofstetter for the Oehms label.