January 23 – Judge Tarek Bitar resumes his investigation into the explosion, 13 months after Hezbollah officials filed complaints against Bitar that prompted him to suspend the investigation.[2]
June 1 - The Lebanese military court charged five men with the December 2022 killing of an Irish peacekeeper during an attack on a UNIFIL convoy in the town of Al-Aqbiya.[14]
June 3 – Muammar Gaddafi's son, Hannibal Gaddafi, goes on a hunger strike to protest against his prolonged detention in Lebanon after being detained since 2015.[15][16]
June 27 – The Lebanese Security Forces seize 450,000 Captagon pills headed to Gulf after a raid in a warehouse near the Beirut International Airport.[19]
July 1 – 2 people were killed in the town of Bcharre during clashes after a land dispute between the neighboring town of Dennyeh in Northern Lebanon.[20]
July 7 – One person was killed and three were wounded during a shootout in the Bekaa Valley.[21]
July 30 – 2023 Ain al-Hilweh clashes: Fighting broke out inside the Ain al-Hilweh Palestinian refugee camp in Lebanon after Islamist gunmen tried to assassinate Fatah militant Mahmoud Khalil, killing a companion of his instead.[22]
August 2 – The former Lebanese Forces coordinator in Bint Jbeil, Elias Hasrouni, was found murdered in his car in his town of Ain Ibil.[23]
August 5 – Saudi Arabia, along with other Gulf and European countries, announces travel restrictions and bans in Lebanon after the Ain al-Hilweh clashes and urged their citizens to flee the country.[24]
August 9 – 2 people were killed near a church during a clash between Hezbollah members and Christian civilians after a Hezbollah truck carrying weapons attempted to entered a Christian town of Kahaleh near Beirut.[25]
August 10 – Lebanese defense minister, Maurice Sleem, was hit with bullets which hit his car in a possible assassination attempt.[26]
August 23 – 2 military personnel died in a military helicopter crash during a training flight in Hammana.[27]
August 28 – The Lebanese authorities detain 2 Russian citizens for allegedly spying for Israel.[28]
August 31 – UNIFL's presence in Southern Lebanon is extended for 1 year after a United Nations vote.[29]
September 8 – 2023 Ain al-Hilweh clashes: Clashes are resumed in Ain al-Hilweh as the accused killer of the Fatah official was not handed over to Lebanese Judiciary.[30]
September 28 – An altercation between Lebanese Armenians and the Lebanese security forces takes place during protests against the Azerbaijani military offensive that recaptured Nagorno-Karabakh.[34]
October 8 – 2023 Israel–Hamas war: The IDF strikes Southern Lebanon after Hezbollah shelled an Israeli military post in the disputed Shebaa Farms region.
October 9 – October 2023 Hezbollah strike: 3 members of Hezbollah are killed during an airstrike by Israel in Southern Lebanon, while two others are killed during a shootout at the border with Israel.[35]