The Tamme--Lauri oak, located in the rural municipality of Urvaste, is Estonia's largest oak tree. It has a circumference of 130 cm, a height of 8 m and is approximately 800 years old. The trunk has been filled with reinforced concrete.
The Tamme-Lauri oak was named after Laurits, the god of fire, who was said to live in the oak and bring misfortune, evil but sometimes good to the surrounding farms. The farm located near the oak is also known as Tamme-Lauri.
The Tamme-Lauri oak was featured on the back of the Estonian ten kroon banknote.
Signs leading to the site of the oak tree are found along the Urvaste-Kanepi highway.