Wan-Hoo is a lunar impact crater that is located on the Moon's far side, and it cannot be seen directly from the Earth.

It lies to the southwest of the huge walled plain Hertzsprung, within the outer skirt of ejecta.

Like much of the surrounding terrain, this crater has been modified by the ejecta from Hertzsprung, and material from that impact encroaches along the inner walls and interior of Wan-Hoo.

This feature was named after Wan Hu, a legendary Chinese figure who is alleged to be the first astronaut.

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Wan-Hoo.