Greg Myers may refer to:

• Greg Myers (baseball) (born 1966), American former Major League Baseball player
• Greg Myers (American football) (born 1972), American former National Football League player

• Athletics at the 2010 South American Games - Men's 4 x 100m relay
• Athletics at the 2010 South American Games - Men's 4 x 400m relay
• Athletics at the 2010 South American Games - Men's 5,000m
• Athletics at the 2010 South American Games - Men's 800m
• Athletics at the 2010 South American Games - Men's decathlon
• Athletics at the 2010 South American Games - Men's discus throw
• Athletics at the 2010 South American Games - Men's hammer throw
• Athletics at the 2010 South American Games - Men's high jump
• Athletics at the 2010 South American Games - Men's javelin throw
• Athletics at the 2010 South American Games - Men's long jump
• Athletics at the 2010 South American Games - Men's pole vault
• Athletics at the 2010 South American Games - Men's shot put
• Athletics at the 2010 South American Games - Men's triple jump
• Athletics at the 2010 South American Games - Women's 10,000m
• Athletics at the 2010 South American Games - Women's 10,000 metres
• Athletics at the 2010 South American Games - Women's 100m
• Athletics at the 2010 South American Games - Women's 100 metres
• Athletics at the 2010 South American Games - Women's 100m hurdles
• Athletics at the 2010 South American Games - Women's 1500m
• Athletics at the 2010 South American Games - Women's 1500 metres
• Athletics at the 2010 South American Games - Women's 20,000m walk
• Athletics at the 2010 South American Games - Women's 200m
• Athletics at the 2010 South American Games - Women's 400m
• Athletics at the 2010 South American Games - Women's 400m hurdles
• Athletics at the 2010 South American Games - Women's 4 x 100m relay