As of 2014, 12 astronauts have walked on the surface of the moon. Additional people have manned spacecraft that landed on the moon, but they did not walk on its surface.
The first two astronauts to walk on the moon were Neil Armstrong and Buzz Aldrin from the Apollo 11 mission in 1969. Later that year, Alan Bean and Pete Conrad walked on the moon during the Apollo 12 mission. In 1971, Edgar Mitchell and Alan Shepard walked on the moon while on the Apollo 14 mission. The Apollo 15 mission, also in 1971, brought David Scott and James Irwin to the moon's surface. John Young, Charles Duke, Eugene Cernan and Harrison Schmitt visited the moon in 1972.