| Official Name: | Atiak |
| Settlement Type: | Municipality |
| Pushpin Map: | Uganda |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Uganda |
| Subdivision Type: | Country |
| Subdivision Name: |  Uganda |
| Subdivision Type1: | Region |
| Subdivision Name1: | Northern Region of Uganda |
| Subdivision Type2: | Sub-region |
| Subdivision Name2: | Acholi sub-region |
| Subdivision Type3: | District |
| Subdivision Name3: | Amuru |
| Subdivision Type4: | County |
| Subdivision Name4: | Kilak |
| Leader Title: | Mayor |
| Unit Pref: | Imperial |
| Population As Of: | 2014 Census |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 3.2592°N 32.1231°W |
| Elevation M: | 850 |
Atiak is a town in the Northern Region of Uganda on the Gulu-Nimule Road, the primary trade route between Uganda and South Sudan.
Atiak is in Kilak County the Amuru District. It is approximately 71km (44miles), by road, north of Gulu, the largest city in the Acholi sub-region.[1] Atiak is approximately 35km (22miles) south of the South Sudanese town of Nimule at the international border with Uganda.[2] This is approximately 407km (253miles), north of Kampala, Uganda's capital and largest city.[3] The coordinates of the town are 3°15'33.0"N, 32°07'23.0"E (Latitude:3.259167; Longitude:32.123056).
Atiak was the site of the 20 April 1995 Atiak massacre in which the Lord's Resistance Army executed an estimated 300 civilian men and abducted juveniles.[4]
The following additional points of interest lie within the town or close to its borders: