Major-General Khalil Jassim Dabbagh (Arabic: اللواء خليل جاسم الدبّاغ; 1916–1969) was a senior officer in the early Iraqi Army. He served as commander of the Mosul military zone, commander of the Light Regiments (Jash), commander of Iraqi commando units (1963–1968), and commander of the Fourth Division (1966–1967).

Dabbagh is best known for his participation in the 1948 Arab–Israeli War, during which he commanded Iraqi forces in the 'Ara and Ar'ara sectors and conducted correspondence and negotiations with officers of the Israeli Defense Forces. He was also involved in the organization of Palestinian auxiliary units during the war.

Between 1943 and 1969, Dabbagh took part in multiple military campaigns in northern Iraq against Kurdish insurgent movements, including the 1943 Barzani revolt and later phases of the Iraqi–Kurdish conflict. During the First Iraqi–Kurdish War, he commanded operations against forces loyal to Mustafa Barzani, including campaigns in 1961 and 1963, the Iraqi Campaign on Alqosh (1963) against Kurdish and communist Al-Ansar units, and the Amadiya campaign on 9 September 1965.

In June 1966, Dabbagh played a key role in thwarting the Arif Abd ar-Razzaq second coup against President Abdul Rahman Arif. He oversaw the arrest of Arif Abd ar-Razzaq and other coup participants at Mosul Airport.

Khalil Jassim was born in 1916 at his home town in Mosul, Ottoman Empire from a family who had a long profession in leather-working, leather trade and merchandise, that brought the family name 'Al-Dabbagh' which means a leather smith or leather merchandise in Arabic. His father Jassim participated in WWI on the Iraq front with the Ottoman army, he was injured and lost one of his legs during the combat operations south of Baghdad and stayed about a week before he was rescued by a British patrol then sent to the British military hospital in Basra where he was treated from his wounds.

Khalil Jassim studied at the military school and military college in Baghdad. Graduated as a lieutenant at 1940, "graduation cycle 18 ".

The first participation of Khalil Jassim in combat was at the Anglo-Iraqi War when the coup of 1941 Iraqi coup d'état took place and followed by British air raids and attacks on the Iraqi army position near Habbaniya RAF Habbaniya. He rescued his unit from dying from thirst after they lost their directions in the Iraqi desert near Fallujah after the heavy air raids. He ran for a very long distance alone and reached to some Bedouins and asked them for help and water to rescue his unit which they complied and sent with him a couple of horses and camels with water. In 1943, 1945, and 1947, he participated in the war in the north against the Kurdish rebels, Tyari and other communist elements with a rank of first lieutenant then captain at that time at the 1943 Barzani revolt, Third Barazani Movement and Fourth Barazani Movement. This war was a guerrilla warfare kind of war, it gained him and other officers a lot of experience and made him one of the most reliable Iraqi generals that would take place in the struggle of fighting Kurdish rebels and peshmerga in the future. He served with other Iraqi senior leaders in the north such Omer Ali and Gazi Al-Dagistani and others. He was involved in training many Arab officers from Libya, Jordan and Yemen, and exchanging the expertise with the Yemenis early officers who visited Iraq at that time in the Yemenis expedition 1947 led by Colonel Ahmed Al Thulya 'Later the leader of Yemen revolution 1955' to gain expertise from the Iraqi officers, who had gained this experience from the constant mountain guerrilla warfare.

He participated in WWII with the Iraqi army when Iraq declared war on the Axis powers in 1943 after cutting diplomatic ties. The Iraqi army played a role in protecting the logistic routes of the Allies, especially the military aid to the Soviet Union which used to arrive from Basra, Baghdad and Kirkuk.