Mark Petersen is a New Zealand rock guitarist from Auckland.
He replaced guitarist Andrew Brough in Straitjacket Fits in 1991.
Petersen played on their Done EP and final album Blow and toured with the band until they broke up in February 1994.
He played guitar and sang on the Straitjacket Fits 2005 reunion tour of New Zealand.
In 2008 he was inducted into the New Zealand Music Hall of Fame with the rest of Straitjacket Fits.