Map - Ghazni

Ghazni (, غزني), historically known as Ghaznain (غزنين) or Ghazna (غزنه), also transliterated as Ghuznee, and anciently known as Alexandria in Opiana, is a city in southeastern Afghanistan with a population of around 190,000 people. The city is strategically located along Highway 1, which has served as the main road between Kabul and Kandahar for thousands of years. Situated on a plateau at 2,219 metres (7,280 ft) above sea level, the city is 150 km south of Kabul and is the capital of Ghazni Province.

Ghazni Citadel, the Minarets of Ghazni, the Palace of Sultan Mas'ud III, and several other cultural heritage sites have brought travelers and archeologists to the city for centuries. During the pre-Islamic period, the area was inhabited by various tribes who practiced different religions including Zoroastrianism, Buddhism and Hinduism. Arab Muslims introduced Islam to Ghazni in the 7th century and were followed in the 9th century by the Saffarids. Sabuktigin made Ghazni the capital of the Ghaznavid Empire in the 10th century. The city was destroyed by one of the Ghurid rulers but later rebuilt. It fell to several regional powers, including the Timurids and the Delhi Sultanate until it became part of the Hotaki dynasty, which was followed by the Durrani Empire or modern Afghanistan. During the First Anglo-Afghan War in the 19th century, the fortifications of Ghazni were partially demolished by British Indian forces.

In August 2018 the city became of the site of the Battle of Ghazni with the Taliban briefly occupying it and taking control of most of the surrounding area. On 12 August 2021, the city was captured by the Taliban as part of the 2021 Taliban offensive.

In 2013, ISESCO declared Ghazni the year's Islamic Capital of Culture.

The city was founded some time in antiquity as a small market town. It may be the Gazaca (Gázaca or Gāzaca) mentioned by Ptolemy, although he may have conflated it and the town of Ganzak (or Gazaka) in Iran.

In the 6th century BC, it was conquered by the Achaemenid king Cyrus II and incorporated into the Persian Empire. The city was subsequently incorporated into the empire of Alexander the Great in 329 BC, and called Alexandria in Opiana. By the 7th century AD, the area was a major center of Buddhism. In 644, the Chinese pilgrim Xuanzang visited a city named Jaguda—which was almost certainly the contemporary name of the later Ghazni.

In 683, Arab armies brought Islam to the region. Yaqub Saffari from Zaranj conquered the city in the late 9th century. The Saffarids reduced the formerly Lawik dynasty to tributary status. In 962, the Turkic slave commander of the Samanid Empire, Alp-Tegin, attacked the city and besieged the Citadel of Ghazni for four months, wresting the city from Abu Bakr Lawik. Around 965, Abu Bakr Lawik recaptured Ghazni from Alp-Tegin's son, Abu Ishaq Ibrahim, forcing him to flee to Bukhara. However, this was not to last long because Abu Ishaq Ibrahim shortly returned to the town with Samanid aid, and took control of the town once again. For nearly two hundred years (977–1163), the city was the dazzling capital of the Ghaznavid Empire, which encompassed much of what is today Afghanistan, Turkmenistan, Pakistan, Eastern Iran and Rajasthan. The Ghaznavids took Islam to India and returned with fabulous riches looted from Hindu temples. Although the city was sacked in 1151 by the Ghorid Ala'uddin, it became their secondary capital in 1173, and subsequently flourished once again. Between 1215 and 1221, Ghazni was ruled by the Khwarezmid Empire, during which time it was destroyed by the Mongol armies of Genghis Khan's son Ögedei Khan.

In the first decades of the 11th century, Ghazni was the most important center of Persian literature. This was the result of the cultural policy of Sultan Mahmud (reigned 998–1030), who assembled a circle of scholars, philosophers, and poets around his throne in support of his claim to royal status in Iran.

The noted Moroccan travelling scholar, Ibn Battuta, visiting Ghazni in 1333, wrote:

"We travelled thence to Parwan, where I met the amir Buruntayh. He treated me well and wrote to his representatives at Ghazna enjoining them to show me honour. We went on to the village of Charkh [Charikar], it being now summer, and from there to the town of Ghazna. This is the town of the famous warrior-sultan Mahmud ibn Sabuktagin, one of the greatest of rulers, who made frequent raids into India and captured cities and fortresses there. His grave is in this city and is surmounted by a hospice. The greater part of the town is in ruins and nothing but a fraction of it remains, though it was once a large city. It has an exceedingly cold climate, and the inhabitants move from it in the cold season to Qandahar, a large and prosperous town three nights journey from Ghazna, but I did not visit it." Tamerlanes's grandson, Pir Muhammad bin Djinhangir, became the governor of Ghazni (along with Kabul and Kandahar) in 1401. Babur conquered the region in 1504 and personally thought that Ghazni was "a mean place" and pondered why any of the princes of the region would make it their seat of government. Ghazni stayed under Mughal control until 1738 when Iranian ruler Nader Shah invaded the area. After Nader Shah's death, Ghazni became part of the Durrani empire.