Obříství Castle, Baroque château in Obříství, Czech Republic.

Obříství Castle is a two-storey late Neoclassical complex at Svatopluka Čecha 1 in Obříství, Mělník district. Its front section stands on the village square, while the rear tract sits on raised ground above the Labe river. The grounds include an English park laid out in the first half of the 19th century.

A fortress on this site is first documented in 1290, and a church beside it in 1384. Václav Pětipeský z Chyš began converting it into a château in the early 17th century, but the estate was confiscated after the Bohemian Revolt. Ferdinand Vilém Slavata had the unfinished building repaired in 1666, and Baron František Arnošt Koller completed the late Neoclassical rebuilding after 1817.

The castle church of St John the Baptist, in its core a Gothic building rebuilt in the Renaissance and early 19th century, holds a main altar painting by Josef Bergler and a Rococo side altar. A kenotaph in the church recalls the tomb of František Koller's family in the crypt.

The castle at Svatopluka Čecha 1 is privately owned and closed to the public, so no interior tours are available. Its front section faces the village square while the rear stands on raised ground above the Labe; the English park below, laid out in the first half of the 19th century, can be seen from outside.

Baron František Arnošt Koller, owner from 1817, moved his collection of ancient monuments here; it is now displayed in Berlin's Pergamon Museum. The writer Matěj Milota Zdirad Polák also worked at the castle during this period.