Quercus ellipsoidalis is a species of oak tree native to North America. It is commonly referred to as Northern pin oak or Hill's oak. However, there are other synonym names for it such as jack oak, red oak, and yellow oak. These names are mostly based on the color of the tree's wood and leaves. The tree can be identified by its height and distinctively shaped leaves, which are elongated and pointed. Quercus ellipsoidalis is a popular ornamental tree for landscaping thanks to its beautiful fall colors. It is also an important tree in lumber and paper production, furniture-making, and other industries.