Sialkot (Urdu and Punjabi: سيالكوٹ) is a city in Punjab, Pakistan. Sialkot is Pakistan's 13th largest city, and is located in north-east Punjab — one of Pakistan's mostly highly industrialised regions. Along with the nearby cities of Gujranwala and Gujrat, Sialkot forms part of the so-called Golden Triangle of industrial cities with export-oriented economies.
Sialkot is believed to be site of ancient Sagala, a city razed by Alexander the Great in 326 BCE, and then made capital of the Indo-Greek kingdom by Menander I in the 2nd century BCE – a time during which the city greatly prospered as a major centre for trade and Buddhist thought. Sialkot continued to be a major political centre, until it was eclipsed by Lahore around the turn of the first millennium. The city rose again in prominence during the British era, and is now one of Pakistan's most important industrial centres.