The Trinity excavation is an archaeological research site in Veliky Novgorod, located in the historic area of Lyudina Konets, at the beginning of the street known as Troitskaya-Proboynaya, and during the Soviet era, Proletarskaya. The excavation is named after the nearby Trinity Church, built in 1365.

In 1973, the Novgorod archaeological expedition led by Academician V. L. Yanin began excavations here. Prior to this, excavations had not been conducted in Lyudina Gonchar's end, and information about this area of Novgorod was only available from written sources.

Before the Great Patriotic War, stone two-story buildings stood on the site of the excavation, one of which remained until 1976. The foundation of another building was hidden underground, where locals had planted gardens. Due to the pressure of the foundations, the upper layers of the cultural layer were disturbed and compressed by 1.5 meters.

During the work, it was found that only the western part of the excavation had been preserved, where cultural layers were studied to full depth. In areas brought down to the bedrock, the early layers date back to the 20-30s of the 10th century. The area of the Trinity excavation began to be settled in the early 10th century, and a population lived here permanently.

Since 2008, excursions have been held at the Trinity excavation from June 11 to September 17, daily except Mondays. According to the Center for Tourism Development 'Krasnaya Izba', from 2008 to 2010, the excavation was visited by 6,637 people.

The Trinity excavation continues to operate. The total area of research exceeds 800 m², while the area of the Trinity XIII and XIV excavations initially amounted to 320 m².

Since the summer of 2008, the 'Theater of Time' has been operating on the excavation site, an open-air exhibition where tourists can descend to the level of the 10th-century soil.

In August 2009, the Festival of the Bedrock was held at the Trinity excavation, dedicated to the achievement of the bedrock layer.

In the summer of 2010, the 1,000th Novgorod birch bark letter was found in the layers of the 12th-13th centuries.

Nearby the Trinity excavation are Detinets, Kremlin Park, and Ekaterininskaya Hill.