Tayabas Bay is a large bay in the southern part of Luzon island in the Philippines. Several islands are located in the bay, largest of which is Marinduque. It has a total surface area of 2,500 km2 (970 sq mi).

Tayabas Bay
The island of Marinduque within the bay with the coast of Quezon in the background
Tayabas Bay is located in Luzon
Tayabas Bay
Tayabas Bay
Location in Luzon
Tayabas Bay is located in Philippines
Tayabas Bay
Tayabas Bay
Location in the Philippines
LocationLuzon Island, Philippines
Coordinates13°37′37″N 121°46′30″E / 13.62694°N 121.77500°E / 13.62694; 121.77500
Typebay
IslandsMarinduque
Settlements

The bay is bordered on the north and east side by Quezon (formerly known as Tayabas) province. Lucena, the capital city of Quezon Province, is located along Tayabas Bay, where several boat and ferry lines serve the sea lanes between Lucena and the different points in the region.