Tenor Sungho Kim was born in Gwangmyeong, South Korea. He first completed a Bachelor of Music degree in voice at the Korea National University of Arts under Prof. Kwangsun Song, followed by a Master's degree at the Hanns Eisler Academy of Music in Berlin under Prof. Ewa Wolak and Ks. Julia Varady. During this time, he attended masterclasses with professors Seungseo Na and Maurizio Carnelli in Seoul, Lioba Braun, Deborah Polaski, Bejun Mehta, Gerd Uecker, Christiane Karg and Brigitte Fassbaender in Hamburg, and Thomas Hampson and Barbara Frittoli in Verbier. In June 2023, he won the Song Prize at the BBC Cardiff Singer of the World Competition. Among his many other awards, the most important include first prize at the International Hans Gabor Belvedere Singing Competition (2018), as well as at the 47th Nanpa Music Competition in Suweon (2015), the 33rd Daegu Singing Competition in Daegu (2015), Gloria Opera's ‘Yang suhwa’ competition and the National Singing Competition in Seoul. He also won a special prize and was a finalist at the 54th Concurso Internacional de Canto Francisco Viñas International Singing Competition in Barcelona (2016) and, in 2020, at the Glyndebourne Opera Cup in England and the Cologne International Music Competition (2021). He also received 2nd prize at the Salvatore Licitra Concurso in Milan (2020).
In the 2018/19 season, Sungho Kim became a member of the International Opera Studio at the Hamburg State Opera, where he sang Scaramuccio (Ariadne auf Naxos) under the baton of Kent Nagano, among other roles. In the summer of 2021, he made his debut at the Verbier Festival in Switzerland as Rodolfo (La Bohème) and was honoured with the Verbier Festival's highest award, the ‘Prix Yves Paternot’.
In 2020/21, he joined the Dortmund Opera as a permanent ensemble member, where he has since performed numerous roles in the lyric tenor repertoire, including Belmonte (Die Entführung aus dem Serail), Fortunatus (Frédégonde), Camille de Rosillon (The Merry Widow), Alvar (Fernand Cortez oder Die Eroberung von Mexiko), Tamino (Die Zauberflöte und Das Geheimnis der Zauberflöte) and Léopold (La Juive). In the 2023/24 season, he appeared as Rodolfo (La Bohème), Quyokuma/Fantastikuss (world premiere of Die Reise zu Planet 9) and Froh (Das Rheingold), among others. In the 2024/25 season, he played the roles of Alfredo Germont (La traviata), Alfred (Die Fledermaus) and Don Ottavio (Don Giovanni), among others.
In addition to the two specialist roles of Pong (Turandot) and Belmonte (Die Entführung aus dem Serail), Sungho Kim also played the roles of S-4711 in the world premiere of WIR (WE) and the young Ukrainian warrior Iskra in the first German stage performance of Mazeppa at Dortmund Opera in the 2025/26 season. He also made a guest appearance in Seoul in the 2024/25 season, where he sang the tenor solo in Beethoven's Ninth Symphony under the baton of Jaap van Zweden. A guest engagement also took him to the Leipzig Opera, where he appeared as Rudolfo in Puccini's La bohème. He also performed this role in the 2025/26 season in Leipzig, as well as the role of Fenton in a new production of Verdi's Falstaff.