Alex "Tattie" Marshall, MBE (born 8 February 1967) is a Scottish bowls player.
Marshall plays at Gifford Bowls Club (outdoor) and East Lothian Indoor Bowling Club. He was awarded an MBE in the 2007 New Year Honours List for his services to the sport. Marshall began bowling at the age of eight supported by both his father and grandfather and first represented his country in 1988.
He is a record breaking six-time World Indoor Singles Champion. He has six World Indoor Pairs titles to his credit (four Men's Pairs and two Mixed Pairs). Marshall has won six World Outdoor Championship Gold medals (Pairs in 1992, 2000 and 2012, Fours in 1992, and Team in 1992, 1996 and 2004).
His other achievements include four Commonwealth Games Gold medals (Pairs in 2002, 2006 and 2014, and Fours in 2014), one Atlantic Games Team Gold (in 2015), and three Hong Kong International Classic Pairs titles (in 1993, 1996 and 2002).
In 2012, Marshall and Paul Foster became the first pair to win the World Indoor and Outdoor Pairs titles in the same year. In 2013, he claimed his first major WBT title outside the World Indoor title at the UK International Open. In 2014, he won the Australian Premier League with the Murray Steamers and was named Most Valuable Player at the end of the season.
In 2016 two more bronze medals were added when he competed in the 2016 World Outdoor Bowls Championship in Christchurch.
Men's Doubles partners = 2000 - 2003 David Gourlay, 2004 - 2016 Paul Foster.
Mixed Doubles partners = 2004 Amy Monkhouse, 2006 Laura Hawryszko, 2007 Allison Merrien, 2008 Caroline Brown, 2009 Debbie Stavrou, 2010 - 2011 Carol Ashby, 2012 Janice Gowler, 2014 Allison Merrien, 2015 - 2016 Julie Forrest.