Krasnogruda [krasnɔˈɡruda] is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania.

[1] The first mention of the Krasnogruda manor and estate (the original name was Krasnyhrud) dates back to 1676.

In the interwar period, the last heirs of Krasnogruda, sisters Gabriel Lipska née Kunat (1888–1962) and Janina Niementowska née Kunat (1898–1977) ran a holiday guesthouse at the manor.

After the war, as a result of the decree of the Polish Committee of National Liberation of September 6, 1944 on the land reform, the manor and land (then with an area of 344.5 ha) ceased to be private property, and the owners were forced to leave it.

By the will of Czesław and Andrzej Miłosz and Janina and Andrzej Jurewicz - the last heirs of Krasnogruda, the Krasnogruda manor and the park were in 2002 taken over by the "Pogranicze" Foundation, which after revitalization is the seat of the International Center for Dialogue.