Mars Surveyor

Mars Surveyor may refer to various NASA Mars probes:


 * Mars Global Surveyor, single orbiter launched in 1996
 * Mars Surveyor 1998, where NASA lost both probes:
 * Mars Climate Orbiter (formerly the Mars Surveyor '98 Orbiter), and
 * Mars Polar Lander (formerly the Mars Surveyor '98 Lander)
 * Mars Surveyor 2001, of which there were also to be two probes:
 * 2001 Mars Odyssey (formerly Mars Surveyor 2001 Orbiter), currently orbiting Mars, and
 * Mars Surveyor 2001 Lander, cancelled in May 2000