Saint Isaac

Saint Isaac may refer to:

People

 * Isaac, son of Abraham in the Old Testament
 * Saint Isaac of Dalmatia (4th-century–383)
 * Saint Isaac of Monteluco, also called St. Isaac of Spoleto (died c. 550)
 * Saint Isaac Jogues (1607–1646)
 * Saint Isaac of Dafra
 * Saint Isaac of Armenia (338–439)
 * Saint Isaac of Nineveh (613–c. 700)

Buildings, structures, and places

 * Saint Isaac's Cathedral, in Saint Petersburg, Russia
 * Saint Isaac's Square, in Saint Petersburg, Russia
 * Saint Isaac's Bridge, the first bridge across Neva river in St.Petersburg, Russia