Tomás Frías may refer to:

• Tomás Frías Ametller, president of Bolivia
• Tomás Frías Province, in Bolivia
• Tomás Frías Autonomous University, Bolivian university

• Synchronised machinegun
• Synchronised swimming at the 1984 Summer Olympics
• Synchronised swimming at the 1986 Commonwealth Games
• Synchronised swimming at the 1990 Commonwealth Games
• Synchronised swimming at the 1992 Summer Olympics
• SynchroniSed swimming at the 1992 Summer Olympics
• Synchronised swimming at the 1994 Commonwealth Games
• Synchronised swimming at the 1996 summer olympics
• Synchronised swimming at the 1998 Commonwealth Games
• Synchronised swimming at the 2000 Summer Olympics
• Synchronised swimming at the 2002 Commonwealth Games
• Synchronised swimming at the 2004 Summer olympics
• Synchronised swimming at the 2004 Summer Olympics
• Synchronised swimming at the 2006 Commonwealth Games
• Synchronised swimming at the 2008 Summer Olympics
• Synchronised Swimming at the 2010 Commonwealth Games
• Synchronised swimming at the 2010 Commonwealth Games - Women's duet
• Synchronised swimming at the 2010 Commonwealth Games - Women's solo
• Synchronised swimming at the 2011 World Aquatics Championships
• Synchronised swimming at the 2012 Summer Olympics
• Synchronised swimming at the 2013 World Aquatics Championships
• Synchronised swimming at the 2014 Asian Games
• Synchronised swimming at the 2015 European Games
• Synchronised swimming at the 2015 European Games – Women's duet
• Synchronised swimming at the 2015 European Games – Women's solo