Nyboder (English: New [small] Houses) is a historic row house district of former Naval barracks in Copenhagen, Denmark. It was planned and first built by Christian IV to accommodate a need for housing for the personnel of the rapidly growing Royal Danish Navy and their families during that time. While the area is still commonly associated with the name of its founder as one of his numerous building projects around Copenhagen, the Nyboder seen today was in fact, except for a single row of houses in St. Paulsgade, built from 1757.

Nyboder is today very much associated with their yellow colour and "Nyboder yellow" is in Danish often used as a generic term to refer to their exact hue of yellow. However, the original colour of the development was red and white.

Under Christian IV the Royal Danish Navy grew rapidly and there was am urgent need for suitable accommodation for its personnel and their families. Bremerholm already offered similar housing for naval officers, these were the old houses referred to by implication in Nyboder's name, so now the new barracks were to house common sailors and other private personnel. The new development was planned on land outside Copenhagen previously acquired by the king with the intention to expand the fortified city northwards. This had still not happened but Saint Anne's Post, later to develop into Kastellet, had already been constructed a little further north.