The police officers were part of a group of eight people – four officers and four civilians – accused of beating 19-year-old Ali Ismail Korkmaz to death in Eskisehir, north-western Turkey.
Three of the civilians received six-year sentences for their role in the attack, while the two other police officers were acquitted of all wrongdoing, the report said.
Korkmaz’s mother was quoted as slamming the court’s decision, as she had hoped for tougher sentences.
The teenager died after spending over a month in a coma.
The Gezi protests began in Istanbul and soon spread to the rest of the country. Rights groups accused the police of using excessive force in an attempt to quell the protests.
Several people died, thousands were injured and thousands more arrested during the weeks of upheaval. Trials are ongoing against some of the organizers of the demonstrations.
In September, a court handed down a seven-year sentence to a police officer for shooting a protester in Ankara during the unrest, which the government says was a plot to overthrow elected officials.