The 5.5 Metre was a sailing event on the Sailing at the 1968 Summer Olympics program in Acapulco.

Seven races were scheduled.

42 sailors, on 14 boats, from 14 nations competed.

[1] DNF = Did Not Finish, DNS= Did Not Start, DSQ = Disqualified = Male, = Female Of the total of three race areas were needed during the Olympics in Acapulco.

Each of the classes was new Olympic scoring system.