Georg (Göran) Wahlenberg (1 October 1780 – 22 March 1851) was a Swedish naturalist.

He was the last holder of the undivided chair that in the previous century had been held by Linnaeus.

He was among the first major scholars to contribute to the plant taxonomy and geography of the High Tatras in the Habsburg monarchy where he carried out research in 1813 (he also determined mountain elevations, but some were later disproved by Ludwig Greiner).

Two of the highest mountain lakes in the Tatras, now in Slovakia, are named Upper Wahlenberg Tarn (Vyšné Wahlenbergovo pleso; elevation 2,157 m or 7,077 ft) and Lower Wahlenberg Tarn (Nižné Wahlenbergovo pleso; 2,053 m or 6,736 ft) in his memory.

[1] Wahlenberg was elected a member of the Royal Swedish Academy of Sciences in 1808.