Huis Barnaart is a Harlem house museum, which became a museum in 2021.

The building, built by the will of Willem Philip Barnaart, in 1807 also housed King Louis Napoleon. After Barnaart's death in 1851, the house passed into the hands of Willem Henry Koppiers and Tjepke Mulier.

In 1991 the building was restored and the refurbishment of the interior was completed in 2016.

The museum houses furniture from the Royal Collection, from the Palace in Dam Square.

The building has a large and majestic facade, with the classic Bentheimer Ionic sandstone pilasters. The central part is covered by a pediment with a round arched window. The high, double sidewalk has beautiful railings, in front of the house there are hard stone poles with chains. The house has one of the earliest Empire-style interiors in the Netherlands. Amsterdam tapestry and furniture supplier Joseph Cuel, who had a part in the furnishing of the Amsterdam City Hall, which was converted into a palace for King Lodewijk Napoleon (in 1808), was also involved in the furnishing of Huis Barnaart. building has been a national monument since 1969.