| Official Name: | Khan Bani Saad |
| Settlement Type: | Town |
| Pushpin Map: | Iraq |
| Pushpin Map Caption: | Location in Iraq |
| Subdivision Type: | Country |
| Subdivision Name: |  Iraq |
| Subdivision Type1: | Governorate |
| Subdivision Name1: | Diyala |
| Subdivision Type2: | District |
| Subdivision Name2: | Ba'quba |
| Unit Pref: | Imperial |
| Population Footnotes: | 2014 |
| Population Total: | 127,000 |
| Timezone: | Arabian Time |
| Utc Offset: | +3 |
| Coordinates: | 33.5667°N 76°W |
Khan Bani Saad (Arabic: مدينة خان بني سعد|Madīna Khān Banī Sa`ad) is a majority Shia[1] Arab city in Diyala Governorate, Iraq.
See main article: 2015 Khan Bani Saad massacre. On 17 July 2015, a suicide bomber detonated a car bomb in the city's crowded market. Over 120 people were killed and 130 injured. The Islamic State of Iraq and the Levant (ISIL) claimed responsibility for the attack.[2]