Campus Martius may refer to:
Campus Martius, the "Field of Mars" in ancient Rome Campus Martius (Ohio), an 18th-century fortification Campus Martius Museum, on the site of the Campus Martius fort in Ohio Campus Martius Park in Detroit, Michigan Campus Martius station, a QLine stop serving the park Campus Martius, Latin name for the Marchfield (assembly)
See also Campo Marzio, a rione of Rome Field of Mars (disambiguation) Champ de Mars (disambiguation) Campo Marte (disambiguation)