Assembly Hall, also known as Serio House, de France House, and Fletcher's Tavern was a small tavern built in 1808 in Washington, Mississippi.

It was listed on the National Register of Historic Places in 1978[1] and designated a Mississippi Landmark on March 21, 1995.

The Democrat-Republican government elected to move the capital from the Federalist-leaning Natchez, Mississippi to the more rural Washington, Mississippi; however, no capitol building was ever built.

Meetings of the state's general assembly were held in the tavern, then owned by Charles de France.

This article about a property in Mississippi on the National Register of Historic Places is a stub.