Kingdom of Serbia Краљевина Србија  (Serbian) Kraljevina Srbija  (Serbian)
1882–1918
Flag Coat of arms
Anthem:  "Боже правде" / "Bože pravde" (English: "God of Justice")
The Kingdom of Serbia in 1914
Capital	Belgrade
Common languages	Serbian
Religion	Serbian Orthodoxy (State religion)
Government	Unitary parliamentary constitutional monarchy
King
• 1882–1889	Milan I
• 1889–1903	Alexander I
• 1903–1918	Peter I
Prime Minister
• 1882–1883 (first)	Milan Piroćanac
• 1912–1918 (last)	Nikola Pašić
Legislature	National Assembly
Historical era	New Imperialism, World War I
• Proclamation	6 March 1882
• May Coup	10 June 1903
• Treaty of London	30 May 1913
• Treaty of Bucharest	10 August 1913
• Corfu Declaration	20 July 1917
• Podgorica Assembly	28 November 1918
• Creation of Yugoslavia	1 December 1918
Currency	Serbian dinar
Preceded by Succeeded by 1882: Principality of Serbia 1918: Kingdom of Montenegro Kingdom of Serbs, Croats and Slovenes
Today part of	Serbia Montenegro North Macedonia

The Kingdom of Serbia (Serbian Cyrillic: Краљевина Србија, romanized: Kraljevina Srbija) was a country in the Balkans which was created when the ruler of the Principality of Serbia, Milan I, was proclaimed king in 1882. It Collapsed in 1918 and merged with Slovenia,Croatia,Bosnia,and Montenegro into the Kingdom of Serbs, Croats and Slovenes or better known as the Kingdom of Yugoslavia after the Austro-Hungarian Empire collapsed in 1918 along with the German Empire while the Ottoman Empire collapsed in 1923 after World War 1 .