A photo of the 22-year-old Shani’s twisted body in the back of a pickup truck ricocheted around the world and brought to light the scale of the militants’ attack on communities in southern Israel.
The military identified the other two bodies found as those of a 28-year-old woman, Amit Buskila, and a 56-year-old man, Itzhak Gelerenter.
The military did not give immediate details on where their bodies were found.
Hamas-led militants killed around 1,200 people, mainly civilians, and abducted around 250 others in the October 7 attack.
Around half of those have since been freed, most in swaps for Palestinian prisoners held by Israel during a weeklong cease-fire in November.
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Israel says around 100 hostages are still captive in Gaza, along with the bodies of around 30 more.
Israel’s campaign in Gaza since the attack has killed more than 35,000 Palestinians, according to Gaza health officials.