Trajan's Market (Latin: Mercatus Traiani; Italian: Mercati di Traiano) is a large complex of ruins in the city of Rome, Italy, located on the Via dei Fori Imperiali, at the opposite end to the Colosseum.

[7] During the Middle Ages the complex was transformed by adding floor levels, still visible today, and defensive elements such as the Torre delle Milizie, the "militia tower" built in 1300.

The Museum of the Imperial Fora (Italian: Museo dei Fori Imperiali), which opened in 2007, houses a wealth of artifacts from all of ancient Rome's forums.

This is actually a part of the Via Biberatica (from the Latin bibo, bibere meaning "to drink"; the street was the location for several of the Roman taverns and grocers' shops in the area).

The giant exedra formed by the market structure was originally mirrored by a matching exedral boundary space on the south flank of Trajan's Forum.