Bursa city is one of the rare cities which continues its development since the Hellenistic Period. The origin of the city is ancient Prusia Ad Olympum city. The ancient city, which was surrounded by city walls, has a loca- tion that is dominant to the recent modern city. The city also has an archaeological potantial which lead us to find many ruins and finds. Among these ruins, especially in the recent years like various places in Anatolia, mosaic pavements have been outshining. Therefore, this paper deals with mosaic pavements of ancient Prusia Ad Olympum city. One of these mentioned mosaics are the pavement which was found in 1949 in Yerkapı, and the others are the pavement found in Molla Güreni quarter in 2003-2004 and the pavement lying on the floor of Orhangazi Mousoleum