Mark Freuder Knopfler, OBE (born 12 August 1949) is a British songwriter, film score composer, guitarist, and record producer. He is best known as the lead guitarist, vocalist, and songwriter for the rock band Dire Straits, which he co-founded with his brother, David Knopfler, in 1977.

After Dire Straits disbanded in 1995, Knopfler went on to record and produce seven solo albums, and, as with his previous tenure, produced many hit songs. He has composed and produced film scores for eight films, including Local Hero (1983), Cal (1984), The Princess Bride (1987), and Wag the Dog (1997).