Mars class

Mars class may refer to:

Real ship and boat classes

 * Mars-class combat stores ship (20th century) of the U.S. Navy
 * Mars-class ship of the line (18th century; 74-gun third rate) of the British Royal Navy
 * Mars-class 64-gun ship of the line (18th century) of the Royal French Navy; see List of ships of the line of France
 * MARS-class tanker (Military Afloat Reach and Sustainability; 20th century) of the Royal Fleet Auxiliary of the British Royal Navy

Fictional ship and boat classes

 * Mars-class starship, of the Federation Starfleet in Star Trek; see Star Trek: Discovery (season 3)