The Burmese–Siamese War (1593–1600), also known as the Naresuan War (​​ဗြနရာဇ်စစ်ပွဲ)was the war fought between the Toungoo Dynasty of Burma and the Ayutthaya Kingdom of Siam. The war was the culmination of Siam's move towards independence following subjugation after the Burmese–Siamese War (1584–1593). The war ended with a victory by Siam, which seized the cities of Tavoy and Tenasserim, and laid siege to two major cities of the Toungoo Dynasty.

The Ayutthaya Kingdom or the Empire of Ayutthaya was a Mon and later Siamese kingdom that existed in Southeast Asia from 1351 to 1767, centered around the city of Ayutthaya, in Siam, or present-day Thailand. European travellers in the early 16th century called Ayutthaya one of the three great powers of Asia. The Ayutthaya Kingdom is considered to be the precursor of modern Thailand, and its developments are an important part of the history of Thailand.