The Grassmarket is a historic market place, street and event space in the Old Town of Edinburgh, Scotland. In relation to the rest of the city it lies in a hollow, well below surrounding ground levels.

The Old Town is the name popularly given to the oldest part of Scotland's capital city of Edinburgh. The area has preserved much of its medieval street plan and many Reformation-era buildings. Together with the 18th/19th-century New Town, and West End, it forms part of a protected UNESCO World Heritage Site.