Joaquim Cruz, Brazilian runner and coach

Joaquim Carvalho Cruz is a Brazilian former middle-distance runner, winner of the 800 meters at the 1984 Summer Olympics. He is one of only ten men, and in August 1984 became the second man, to run the 800 metres in less than 1 minute 42 seconds.

March 12 is the 71st day of the year in the Gregorian calendar; 294 days remain until the end of the year.