The State Department named Meliad Farah, Hassan el-Hajj Hassan and Hussein Atris as "specially designated global terrorists."
The terror designation makes it illegal for US citizens to engage in any transactions with the three men, and freezes any property they might possess within the United States.
All three men are Lebanese by birth, but Farah was identified as an Australian national, while Hassan el-Hajj Hassan is Canadian.
Hussein Atris, who the State Department said has Swedish nationality, was identified as a member of Hezbollah's overseas terrorism unit.
He was arrested in 2012 in Thailand as a suspect in a plot to carry out a bombing in Bangkok and was sentenced by a Thai court to two years and eight months in prison for possessing illegally possessing explosives.
Lebanon's Shiite Hezbollah, which is backed financially and politically by Iran, is considered a terrorist organization by the United States.
