John Holloway (born 19 July 1948) is a British baroque violinist and conductor, currently based in Dresden, Germany. He is a pioneer of the early music movement.

Holloway was born in Neath, Wales, and studied in London at the Guildhall School of Music and Drama in London. After initial engagements, including at the Academy of St. Martin in the Fields and at the English Chamber Orchestra, he became manager and concertmaster of the Kent Opera Orchestra in the 1970s. After an encounter with Sigiswald Kuijken in 1972, he started playing the Baroque violin and gained a reputation as violinist, teacher and conductor in the field of historically informed performance.

In 1970 he became the concertmaster of Sir Roger Norrington's London Classical Players, and later Andrew Parrott's Taverner Consort and Players. Besides playing in numerous Baroque orchestras, he is a noted musicologist and lecturer.

Holloway has taught at the Guildhall School of Music and Drama in London, the Schola Cantorum in Basel, and the Early Music Institute of Indiana University in Bloomington. He has given classes and led workshops in most European countries, as well as in Korea, New Zealand and the USA. In 2004, he was Regents’ Lecturer at UC Berkeley. In 1999, he began to teach at the Hochschule für Musik "Carl Maria von Weber" in Dresden.

Between 2003 and 2005 Holloway served as musical director of the Indianapolis Baroque Orchestra, and in 2005 and 2006 concertmaster and music director of the period instrument ensemble and orchestra known as New Trinity Baroque.

In 2005 he founded jointly with Belgian conductor and harpsichordist Florian Heyerick and a music agent the Mannheimer Hofkapelle, which in the summer of 2007 could be heard for the first time in 300 years with its original complement of 40 musicians. Between 2006 and 2012, he was artistic director of the international violin competition and master class known as Violine in Dresden.