Ježíšův dub, Ancient oak tree in Klášterec nad Ohří, Czech Republic

Ježíšův dub is a solitary summer oak (Quercus robur) at the edge of the Doupov Mountains, where they meet the Most Basin, beside a petrol station on Karlovarská street in Klášterec nad Ohří. Its crown reaches 14 m and the trunk measures 492 cm around (2019). A small group of self-seeded trees grows around it.

Around 1800 a small statue of the seated Christ was placed in the tree's hollow, and the oak served as a wayside shrine (boží muka). As the trunk grew, wood gradually closed around the figure until the tree had swallowed it entirely. The oak has been protected since 2019 as a landscape dominant, aesthetically interesting and historically important tree; in 2019 its age was estimated at 600 years.

The name comes from a small statue of seated Jesus Christ said to have been placed in the tree's hollow around 1800, so the oak served as a wayside shrine (boží muka). As the trunk grew, it enclosed the figure completely; the statue is no longer visible and is presumed to remain inside the wood.

The oak stands as a solitary tree at the edge of the Doupov Mountains, on the border with the Most Basin, beside a petrol station on Karlovarská street. It is reached directly from the road, not through park paths, and a small group of self-seeded trees grows around it. The trunk measures 492 cm in girth (2019 measurement).

Around 1800 a small statue of the seated Jesus Christ was reportedly placed in the tree's hollow, so the oak served as a wayside shrine. As the trunk grew, it enclosed the statue until the figure was completely swallowed by the wood.