Stephen Paul Marino Jr. (born March 10, 1980) is an American professional golfer who played on the PGA Tour.

A military brat, Marino was born in Altus, Oklahoma, where his father, Steve Sr., was stationed as a navigator in the U.S. Air Force.

Marino's golf game began to blossom at age 14, when he worked and played at the Army Navy Country Club in Fairfax; he graduated from W.T.

[5] Marino embarked on his professional career in 2002 on the Tar Heel Tour, and moved to Florida to practice and play year-round.

There he played on the Golden Bear Tour, a developmental circuit backed by Jack Nicklaus in which all the events were within 60 miles (100 km) of West Palm Beach, near where he lived then (and now).

In May 2009, Marino and Tim Clark lost to Steve Stricker in a two-hole playoff at the Crowne Plaza Invitational at Colonial in Fort Worth, Texas.

Marino received international attention in 2009 when he was co-leader (with Tom Watson) at the halfway point of the 2009 Open Championship at Turnberry in Scotland.

But playing the 18th for the third time in the playoff, Marino three-putted from just off the green for a par, while Finau birdied the hole again for the win.