Dealul Spirii (Romanian: [ˈde̯alul ˈspirij], Spirea's Hill) is a hill in Bucharest, Romania, upon which the Palace of the Parliament (formerly known as House of the People) is now located.
Initially a vineyard known as Dealul Lupeștilor, the hill was rebaptised after a doctor Spiridon Kristofi (also known as "Spirea"), who founded in 1765 the fortified Spirea Veche church; the latter was demolished in 1984 to build the House of the People.
Also on the hill were found the ruins of Curtea Nouă ("New Court"), the princely residence which was built in 1776 by Alexander Ypsilantis, Prince of Wallachia, to replace Curtea Veche. It was built together with a large wine cellar, still in use during the 1900s. Curtea Nouă was the official residence of the Phanariotes until 1812, when it burnt down — it was since known as Curtea Arsă ("Burnt Court"), the ruins being razed completely in 1986.
In July 1818, Dealul Spirii saw the rising of a hot air balloon, an event witnessed by Prince John Caradja.
On 13 September 1848, the closing battle of the 1848 Wallachian Revolution was fought on the hill, involving the Ottoman troops sent to quell the rebels and the Firemen division of Bucharest, led by Pavel Zăgănescu.
The hill was also the site of the Arsenal (established in 1861), which gave Dealul Spirii its alternate name, Dealul Arsenalului. Also located on this hill was Stadionul Republicii, an Art deco stadium inaugurated in 1928 as the "ANEF Stadium" (the stadium of the "National Academy of Physical Education) and used by the Progresul football team, now known as FC Naţional. The stadium was covered up during the construction of the House of the People. As of 2006, the remnants of the stadium are being converted into an underground parking lot.