Date of Birth: 
Place of Birth: Tallinn, Estonia
About Karl-Martin Rammo
- Karl-Martin Rammo (born 6 June 1989) is an Estonian sailor, born in Tallinn.
- He competed at the 2012 Summer Olympics in the Men's Laser class. At the 2016 Summer Olympics in Rio de Janeiro he competed in the Men's Laser class.
- He was the flagbearer for Estonia during the Parade of Nations.
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