Marna

Marna may refer to:

Places

 * Marna, Estonia, a village in Pärsti Parish in Viljandi County, Estonia
 * Marna, or Mandalselva, a river in Vest-Agder county, Norway
 * Marna, Minnesota, an unincorporated community in Faribault county, Minnesota in the United States
 * Marna, Sweden, part of a peninsula south of Sundsvall

Other

 * MV Marna, a British coaster formerly named Empire Cliff and later named Harcliff and then MV Ricardo Manuel
 * Marnas, a god worshipped in Gaza in antiquity