Marty Sampson (b. May 31, 1979) is a Christian songwriter and a worship leader at the Hillsong Church in Sydney, Australia. Originally featuring in the Youth Alive albums of the late 1990s, he was one of original Hillsong United worship leaders and has led worship on every United album to date. He plays guitar and occasionally piano. He was married in November of 2006 to Michelle.

Sampson was a former worship leader for Hillsong United together with Joel Houston (son of pastor Brian Houston). His last album with United in the 2007 United album All of the Above, could be his last album with Houston and the Hillsong United team.

Since his marriage with Michelle, Sampson has moved from Hillsong United to the Hillsong band and helps lead worship with Darlene Zschech and the rest of the team. He is now one of the main worship leaders in Hillsong Church along with Zschech and Reuben Morgan.

Sampson recently released a solo album entitled "Let Love Rule."