Trowulan is an archaeological site in Trowulan Subdistrict, Mojokerto Regency, in the Indonesian province of East Java. It includes approximately 100 square kilometres and has been theorized to be the site of the eponymous capital city of the Majapahit Empire, which is described by Mpu Prapanca in the 14th-century poem Nagarakretagama and in a 15th-century Chinese source. When it was the capital of the Majapahit Empire, the city was known as Wilwatikta, which is a name also synonymous with the empire's name. It was razed during the invasion of Girindrawardhana to defeat Kertabhumi in 1478. After this event Majapahit's capital was moved to Daha. The Trowulan Museum includes a collection of artifacts.
The Nagarakretagama contains poetic descriptions of the palace of Majapahit and its surroundings but is limited to the royal and religious sectors. Some of the details are vague, and scholars who have tried to compile a plan of the capital have come to different conclusions.
Older research at Trowulan has concentrated on monumental remains: temples, tombs, and a bathing place.