Efi Mantzaraki

Eftychia "Efi" Mantzaraki (; born 12 November 1978) is a Greek former sailor, who specialized in the Yngling and Laser Radial classes. She represented the host nation Greece in the three-woman keelboat at the 2004 Summer Olympics, before switching to a single-handed boat on her second trip to Beijing 2008. Mantzaraki trained full-time under her personal coach Christos Chionas, while sailing competitively for Katoikon Vouliagmeni.

Mantzaraki made her Olympic debut in Athens 2004, when Greece hosted the Games for the second time in history. Teamed up with leader Aikaterini Giakomidou and her fellow crew member Eleni Dimitrakopoulou in the inaugural Yngling class, the Greek trio finished the race series by a massive clamor of the home crowd in eleventh overall with a satisfying net grade of 86.

Mantzaraki switched to a single-handed boat on her second Olympic trip to Beijing 2008, sailing in the Laser Radial class. Building up to her Olympic selection, she finished twenty-fifth out of 51 sailors in the gold fleet to secure one of the remaining places vying for qualification and eventually, to lock the country's Laser Radial berth at the class-associated ISAF Worlds nearly five months earlier in Auckland, New Zealand.