Ropsha (Ропша) is a settlement in Lomonosovsky District of Leningrad Oblast, Russia, situated about south of Peterhof and south-west of central Saint Petersburg, at an elevation of to . The palace and park ensemble of Ropsha are included in the UNESCO World Heritage list as a constituent of Historic Centre of Saint Petersburg and Related Groups of Monuments.
The settlement was first mentioned in the documents of the Novgorod Republic in the 15th century, when its name was spelled as "Khrapsha". It passed to Sweden following the Treaty of Stolbovo but was recaptured by Peter the Great during the Great Northern War. Upon hearing about the curative properties of Ropsha's mineral springs, the tsar planned to make it his summer retreat; a timber palace and small church were built there. Subsequently, when he discovered the more favourable location of Strelna and contrived a system of pipes to bring water from the Ropsha heights to the fountain cascades projected in Peterhof, he abandoned his previous plans for Ropsha and made a present of it to his senior associate, Prince Fyodor Romodanovsky, or the "Caesar-Pope" as he was wont to style him.
Prince Romodanovsky was an old man of harsh disposition, who kept tame bears in his palace to scare infrequent visitors. Being in charge of Peter's secret police, he would bring political prisoners to a torture chamber arranged in Ropsha Palace and their screams would spook the neighbourhood. Despite macabre stories of his cruelty and misdeeds, a neighbour, Chancellor Golovkin, found it prudent to arrange the marriage of his son to Romodanovsky's daughter. After the 1722 wedding, Ropsha Palace was overhauled and expanded under the supervision of Golovkin's friend, Ivan Yeropkin.
In connection with the Lopukhina Conspiracy, the Golovkins fell into disgrace and their possessions were seized by Empress Elizabeth, who asked a court architect, Bartolomeo Rastrelli, to prepare plans for a new palace at Ropsha. As Rastrelli was busy with other projects, his designs for Ropsha were never executed.