Centurion is the name given to a single Eucalyptus regnans tree growing in Southern Tasmania, Australia.

[2][3][1] This discovery places E. regnans as the third-tallest tree species in the world after the coast redwood and the Himalayan cypress, and taller than both the Sitka spruce and Coastal Douglas Fir.

[4][5] It was discovered in August 2008 by employees of Forestry Tasmania while analysing the data collected by LiDAR system used in mapping and assessment of state forest resources.

Near Centurion grew two other giant trees: the 86.5 metre tall E. regnans named Triarius and The Prefect which had a girth of 19m until destroyed in the 2019 fires.

[9] Centurion was re-measured again by ground laser in December 2018 and was found to have possibly reached 100.5 meters in height.