Olga Nikolaevna of Russia

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Olga Nikolaevna of Russia
Queen consort of Württemberg
Tenure	25 June 1864 – 6 October 1891
Born	11 September 1822 St. Petersburg, Russia
Died	30 October 1892 (1892-10-31) (aged 70) Friedrichshafen, Kingdom of Württemberg, German Empire
Burial	4 November 1892 Schlosskirche, Stuttgart, Kingdom of Württemberg, German Empire
Spouse	Karl I of Württemberg ​ ​ (m. 1846; died 1891)​
House	Holstein-Gottorp-Romanov
Father	Nicholas I of Russia
Mother	Charlotte of Prussia

Olga Nikolaevna of Russia (11 September 1822 – 30 October 1892) was Queen of Württemberg from 25 June 1864 until 6 October 1891 as the wife of Charles I of Württemberg.

Olga was the second daughter of Nicholas I of Russia and Charlotte of Prussia. She was thus a sister of Alexander II of Russia. She married Charles I of Württemberg in 1846, with whom she had no children.