After studying at the Faculty of Law at the University, Nika Guliashvili learned at Tbilisi Conservatory. After wards he joined the troupe of Tbilissi Opera. As soloist he has performed a Monk (G. Verdi's Don Carlos), Masetto (Don Giovanni by W.A. Mozart), Sarastro (die zauberflot by W. A. Mozart), Il Re (G. Verdi’s Aida), From 2007 to 2009 he was undergoing the training at the National Centre for Lyrical Artists of Marseille: from now on his career acquires the international scales. He performed the role of Mephistopheles (C. Gounod's Faust, Hibiia kokaido in Tokyo), Banco (Macbeth by G. Verdi in Bergen) and Angelotti (Tosca by Puccini in Bombay) and Raimondo (Lucia di Lammermoor by G. Donizetti) in Metz. Since 2011 we have found him in the role of Kuno (CM Von Weber, A Freischütz ("freeshooter") at the Toulon Opera and Opera of Saint-Etienne. He sang in Shostakovich's The Nose on the Festival of Eksan-Provence and at the Lyon Opera, the role of Timur (Turandot by G. Puccini) at the Bergen Opera and he made his debut at the Montpellier Opera and Opera-Comique of Paris in the role Saint Corentin in The King of Ys (by E. Lalo). He also was Commander in W.A. Mozart’s Don Giovanni at the Operas of Tours and Reims. Nika Guliashvli began the sacred music repertoire with Verdi's Requiem in Le Mans Congress Palace and in Madeleine church in Paris, W.A Mozart's Requiem at the Church of Saint-Germain (Paris) and Stabat Mater by G. Rossini at the Invalides. In 2015 he was Don Basilio in Rossini's Barber of Seville at the Theatre of San Sebastian (Spain),Sparafucile in Verdi’s Rigoletto at the Opera des Landes in Soustons.
In 2016, he sung a Solo Concert of russian music at the Limoges Opera, Bonzo in Puccini’s Madama Butterfly at the Reims Opera, Mephisto at the Opera des Landes Soustons; Monterone in Verdi’s Rigoletto in Lyrical Nights Sanxay, the Sultan in Nino Rota’s Aladin at the Saint-Etienne Opera.
2017 He’s Tom in Verdi’s Un Ballo in Maschera, Mephisto at the Wroclaw Opera (Poland), and Bonzo in Puccini’s Madama Butterfly at the Toulon Opera
2018 Nino’Shadow in Rossini’Semiramide and Fafner in Wagner’s Siegfried at the Saint-Etienne Opera,
He will be as well Monterone in Verdi’s Rigoletto in Toulon, Bailli (Werther by Massenet) at the Tbilissi Opera, Bonzo (Madama Butterly) at the Nancy Opera and Il Re (Aida by Verdi) in Lyrical Nights Sanxay.