|Birth||6 June 1829, Saint Petersburg, Tsardom of Russia|
|Death||9 December 1891 (aged 62 years)|
Alexander Rudolf Karl Freiherr von Uexküll (6 June [O.S. 25 May] 1829 – 9 December [O.S. 28 November] 1891) was a Baltic German politician who was the mayor of Reval (now Tallinn) from April 1878 to June 1883. He was a member of the noble von Uexküll family, which had origins in Bremen. Von Uexküll studied in the University of Dorpat. He owned Heimar manor (now Haimre). His son was biologist and pioneer of biosemiotics Jakob von Uexküll. He was succeeded by Wilhelm Greiffenhagen.