Aslam Aboobaker, 25, Sharief, 30, and Nazeebudeen Konjimohammed, 33, died on the spot when their vehicle hit the parked truck near Sharjah on Thursday.
The fourth passenger in the car was critically injured and is undergoing treatment at a nearby hospital.
They were travelling from Sharjah International Airport when the accident took place.
All the victims hailed from Kerala, Emirates 24/7 reported.
According to the report, Aslam worked as a petrol station staffer, Sharief was employed as a driver and Nazeebudeen was a cafeteria employee.