Another five soldiers were wounded in a rocket attack on Turkish tanks, the military said in a statement.
The fatalities are believed to be the first since Turkey launched its operation inside Syria two weeks ago.
Two fighters from the Free Syrian Army were also killed and another two injured in the attack.
"Two of our hero comrades were martyred and five were wounded in a rocket attack on two of our tanks by Daesh (IS) elements," the army statement said.
The rocket attack was launched near the village of al-Waqf, it added.
