John Lawry is a Christian rock musician, composer, producer, and songwriter. He was the keyboardist of Petra from 1984 to 1994. After his departure, Lawry dedicated himself to producing and record engineering. From 2010 to 2012, he rejoined some of his former Petra bandmates to record and tour under the name of Classic Petra. In 2013, he officially rejoined Petra as their keyboardist.