Marin Alsop (born October 16, 1956) is an American conductor and violinist. She is currently music director laureate of the Baltimore Symphony Orchestra, as well as, chief conductor of the Vienna Radio Symphony Orchestra, and the Ravinia Festival. In 2020 she was elected to the American Philosophical Society.

In the UK, Alsop has served as principal guest conductor with the Royal Scottish National Orchestra and with the City of London Sinfonia. Alsop was Principal Conductor of the Bournemouth Symphony Orchestra (Bournemouth SO) from 2002 to 2008, the first female principal conductor in the orchestra's history. She was voted Gramophone magazine's Artist of the Year in 2003 and won the Royal Philharmonic Society's conductor's award in the same season. In April 2007, Alsop was one of eight conductors of British orchestras to endorse the 10-year classical music outreach manifesto, "Building on Excellence: Orchestras for the 21st Century", to increase the presence of classical music in the UK, including giving free entry to all British schoolchildren to a classical music concert. Alsop received an honorary degree of Doctor of Music from Bournemouth University on 7 November 2007. Alsop served as an Artist-in-Residence at the Southbank Centre, London, for the 2011–2012 season.