Count Otto Heinrich Igelström (Swedish: Otto Henrik Igelström, Russian: Игельстрем, Иосиф Андреевич, Iosif Andreyevich Igelström) (May 7, 1737 - Garsden, now Lithuania) was a Russian general from the noble Swedish family of Igelström.
Otto Heinrich Igelström, son of Landmarschall (Country Marshal) in the Governorate of Livonia freiherr Gustaf Henrik Igelström and Margarethe Elisabeth von Albedyll, got education in Riga and Germany. In 1753, entered military service in Russia, participated in Russo-Turkish War (1768–1774). In 1777 he became lord of Unipiha manor (German: Unnipicht) and in 1781 lord of Meeri manor (German: Meyershof) in Livonia (now in Nõo Parish, Estonia. In 1784, he commanded Russian troops in Crimea in 1784 and took the last Crimean khan Shakhin Girey prisoner. In 1788-1790 participated in Russo-Swedish War (1788-1790) and was empowered to sign the Treaty of Värälä on behalf of Russian Empire in 1790. Since 1790 - general en chef and commander of the Finland Corps. In 1784-1792 was the governor-general of Siberia and Ufa province, in 1792 he was granted Russian nobility title and was made the governor-general of Pskov province, and in 1793 - of Kiev and Chernigov provinces. In 1794, was appointed ambassador to Warsaw and the commander of Russian troops in Poland. For his failure in suppressing the Warsaw uprising he was demoted. Infantry General since 1796. Paul I of Russia took him into service in the rank of infantry general and appointed the governor-general to Orenburg province in 1797.