The man, whose name was not released, headed Hezbollah’s Unit 4400 that is “responsible for the transfers and the amount of funds” to the group through Tehran’s oil sales, army spokesman Rear Admiral Daniel Hagari said in a statement.
The commander was “eliminated” in Syria “a few hours ago”, he added.
The unit was previously led by Mohammed Jafar Ksir, also known as Sheikh Salah, Hagari said.
Earlier Monday, Syria’s defence ministry announced the death of two people in a strike attributed to Israel and targeting a car in Damascus.
The Syrian Observatory for Human Rights reported that a strike targeted a non-Syrian man who was driving his car in a neighbourhood where a memorial was being held for Hamas leader Yahya Sinwar, who was killed by Israel last week in Gaza.
Hamas ally Hezbollah has been firing rockets daily into northern Israel in support of the Palestinians since the war was triggered by Hamas’s October 7, 2023 attack on Israel.
Israel, which has been conducting a ground offensive for nearly a month to push Hezbollah from its northern border, has in recent days ramped up its drive to hit the group’s finances.