Yoojin Park (박유진) is a violinist and composer born in Seoul, South Korea, who has lived and worked in New York since the early 2010s. She has made one album as a leader, West End (Universal Music Korea, April 25, 2013), a quintet record of five originals and four standards produced by Antonio Hart. Around it she has built a career that runs across jazz, classical, pop, film and dance music. Her date of birth is not published, and no source states her citizenship. The Hangul form of her name comes from the title of her own 2013 YouTube upload of the title track, which reads 바이올리니스트 박유진 - 웨스트 엔드; no Korean-language article or database entry for her was found. She is a different musician from the electric violinist Eugene Park (유진 박), whose Korean name is also written 박유진.

According to the Korean Cultural Service New York, she began piano at the age of three and violin at four, encouraged by a classically trained pianist mother. At seven she took second prize at the 1988 Hankook Ilbo Violin Competition, and the same biography says she went on to win numerous competitions in Korea over about twenty years of classical study. Her own website calls her a prodigy and says she attended the Korea National University of Arts, where she earned a bachelor's degree in classical violin performance under Professor Nam Yun Kim; the New Jersey Symphony dates the degree to 2006. After graduating she toured as a violinist with the K-pop artist Lee Seung-hwan, and her website says that experience made her curious about jazz and about playing without being bound to the printed page.

In 2006 she moved to Boston to study at Berklee College of Music, where she earned a diploma in jazz violin performance, dated 2009 by the New Jersey Symphony, and graduated magna cum laude according to her website. She then moved to New York and in 2011 received a master's degree in jazz performance from Queens College, where her teacher was the saxophonist Antonio Hart. Hart later produced her debut.

West End was recorded at Systems Two in Brooklyn and released on April 25, 2013 under her name by Universal Music Korea (catalogue number DU42054). Her quintet on the record is the pianist Victor Gould, the bassist Lonnie Plaxico, the drummer Montez Coleman and, on four tracks, the alto saxophonist Godwin Louis. She wrote "Dancing Blossom," the title track, "12/8 Blues" and "Banpo Streets," and Discogs credits her with "Yamaha Groove" together with Richard Parker. The standards are Gershwin's "It Ain't Necessarily So" and "Summertime," both credited to Jascha Heifetz's transcriptions, Marvin Fisher's "When Sunny Gets Blue" and Freddie Hubbard's "Up Jumped Spring." Dan Bilawsky's review for All About Jazz called it a thoughtful program and heard poise and purity in her playing, while wishing for a little more fire and risk. A review by Travis Rogers, credited to JazzTimes on her website, called the album a herald that a wonderful new violinist had arrived in jazz.

She took the music to the stage with her quintet. On April 30, 2015 she played an Open Stage evening at the Korean Cultural Service New York, built around the album and including an arrangement of the folk song "Arirang." The Korean Cultural Center New York also listed her quintet at the Blue Note Jazz Club in late-night sets on November 27, 2015 and September 17, 2016, the second with new original music from a planned next album, and its biography names the Rockwood Music Hall, Smalls and the Jazz Gallery among the rooms she has played. In 2019 the Blue Note marked World Violin Day by naming her among the violinists who had played its stage, according to the New Jersey Symphony. The 2016 listing also says she took part in the saxophonist David Binney's String Project at the Jazz Gallery and in Myron Walden's group with strings at Smalls and Mezzrow. Discogs lists no second album under her own name.

As a sideman she has become one of the string players who works with a circle of New York jazz leaders. Discogs credits her on violin on Victor Gould's Clockwork (Fresh Sound New Talent, 2016), where she plays on three tracks beside the violist Heejin Chang and the cellist Veronica Parrales in a band that includes Jeremy Pelt, Godwin Louis, Walden and Pedrito Martinez; on Gould's Thoughts Become Things (Blue Room Music, 2019, recorded December 10 and 11, 2018 at Sear Sound), on three tracks with a string section, beside Dayna Stephens and Rodney Green; and, as a special guest, on "In Memoriam" on Gould's In Our Time (Blue Room Music, 2021). She plays on Antero Sievert's The_Underscore (JMI Recordings, recorded July 29 and 30, 2018), on the vibraphonist Chien Chien Lu's The Path (self-released, 2020, recorded February 20 and 21, 2020), on Myron Walden's Flutes & Strings (JMI Recordings, 2025, recorded direct to tape on October 15, 2023), on the vocalist Eugenie Jones's Eugenie (Openmic Records, 2025) and on the vibraphonist Jalen Baker's Repaved (Cellar Music, released September 4, 2026, recorded in January 2026 and produced by Pelt). She is also on the folk and rock singer Catriona Sturton's EP Night Bell (JMI Recordings, 2023). Her website also names Tivon Pennicott and the drummer Anwar Marshall among the jazz musicians she has worked with as a sideman.

Her career outside jazz is large, and it is documented almost entirely by her own biographies. They say she toured with the dance-music producer KSHMR at Ultra Korea, Ultra Singapore, Sunburn Festival in India and in Montreal; appeared in music videos and recordings with Madison Beer and YUNGBLUD; and performed with Josh Groban, Sarah Brightman and Deborah Cox at the opening of the Vessel at Hudson Yards in New York. They also list a Global Citizen Festival appearance with Sofia Carson in 2023, a Lincoln Center Summer for the City set with Arthur Verocai in 2023, a 2024 appearance with Jennifer Hudson at the Rockefeller Center Christmas Tree Lighting, broadcast on NBC, and a New Year's Eve appearance with David Bisbal on Telemundo. In film and tribute work they credit her as concertmaster and soundtrack violinist for Hulu's Life & Beth, as leader of the string quartet for the documentary Descendant, and as lead violinist in tribute shows for Paul McCartney at Carnegie Hall and for Curtis Mayfield and Charlie Parker. The New Jersey Symphony adds a Jazz Foundation of America "Bird Call" show for Parker's centennial.

She also teaches. The New Jersey Symphony has listed her as a teaching artist for its youth orchestra program since 2015; she has been an artist in residence at the Cicely Tyson School of Performing & Fine Arts in East Orange and at John Bowne High School in Flushing, has worked for the Paterson Music Project since 2019, and teaches violin privately through the Opportunity Music Project in New York.

Not much more is on record. No interview in which she describes her influences was found, no birth date or citizenship is stated anywhere, and no later leader album has been issued.

Park comes to jazz as a classical soloist, and the classical training stays audible in the reviews and the repertoire. Bilawsky describes a graceful, dignified violin sound moving through swinging, soulful and mellow pieces, hears a Ray Charles flavour in "12/8 Blues" and a violin cadenza closing "When Sunny Gets Blue," and singles out the title track as an exquisite showcase of her soulful side. The two Gershwin pieces on West End start from Heifetz's violin transcriptions. The program she played at the Korean Cultural Service in 2015 added "Arirang," the folk song, to the album's pieces.

On whether she is primarily a jazz artist, the evidence points both ways. Her one leader album, her quintet's Blue Note sets, her Queens College master's degree in jazz performance and nine of the ten releases that Discogs lists under her name carry Jazz among their genres; the exception is the folk and rock EP Night Bell. Against that, most of the visible work in her own biographies is in pop, dance, film and orchestral settings, and she also teaches in orchestral education programs. On the strength of the records she is best described as a jazz violinist who works widely.