Reenstiernska palatset, 17th-century palace in Södermalm, Sweden.

Reenstiernska palatset is a 17th-century residential palace in Södermalm with stone walls, pilasters, and decorative details beneath the upper-floor windows. The structure originally sat within expansive grounds that shaped how the property was laid out.

The merchant Jakob Momma, ennobled Reenstierna, commissioned the palace in the late 1660s to designs by Johan Tobias Albinus, in the Dutch Palladian style. After his death in 1678 his sons owned it until 1698, when it passed through many hands, including Count Rudolph Horn von Rantzien. In 1874 the city's health board bought the whole property; the main building then trained midwives while Maria hospital opened in the former weaving factory.

This palace shows Dutch-Palladian design influences that were uncommon in Stockholm's architecture at the time. The building's decorative style reflects European tastes that shaped how wealthy merchants wanted their homes to look.

The palace is located at Wollmar Yxkullsgatan 23 and marked with a blue plaque placed by Stockholm City Museum. Visitors can view it from outside, though the building itself is not open to the public for interior tours.

The 1846 drawings for Prins Carls uppfostringsinrättning show workshops for tailors, blacksmiths, shoemakers and carpenters inside the former weaving factory east of the palace, alongside dormitories for 100 boys, playrooms, kitchens and schoolrooms.