Bajaur District (باجوړ ولسوالۍ, ) is a district in the Malakand Division of Khyber Pakhtunkhwa province of Pakistan. Until 2018, it was an agency of the Federally Administered Tribal Areas. in 2018, it was merged with Khyber Pakhtunkhwa, after the announcement of annexing FATA with KPK. According to the 2017 census report, the population of the district was 1,093,684. It shares a 52 km border with Afghanistan's Kunar Province. The town of Khar is its district headquarter.
Bajaur is about long and wide. It lies at a high elevation to the east of the Kunar Valley of Afghanistan from which it is separated by a continuous line of rugged frontier hills. The old road from Afghanistan's Kabul to Pakistan went through Bajaur before a new pass, Khyber Pass, was constructed.
To the south of Bajaur is the district of Mohmand. To the east, beyond the Panjkora River, are the hills of Swat District. On its east side, there is the district of Malakand, while on its northeast is an intervening watershed between Bajaur and Dir.
Nawagai is the chief town of Bajour; the Khan of Nawagai was previously under the British protection for the purpose of safeguarding of the Chitral road.
An interesting feature in the topography is a mountain spur from the Kunar range.
The drainage of Bajaur flows eastwards, starting from the eastern slopes of the dividing ridge, which overlooks the Kunar and terminating in the Panjkora river, so that the district lies on a slope tilting gradually downwards from the Kunar ridge to the Panjkora.
Jandol, one of the northern valleys of Bajour, has ceased to be of political importance since the 19th century, when a previous chief, Umra Khan, failed to appropriate himself Bajour, Dir and a great part of the Kunar valley. It was the active hostility between the Amir of Kabul (who claimed sovereignty of the same districts) and Umra Khan that led, firstly to the demarcation agreement of 1893 which fixed the boundary of Afghanistan in Kunar; and, secondly, to the invasion of Chitral by Umra Khan (who was no party to the boundary settlement), and the siege of the Chitral fort in 1895.