La Costeña may refer to:

• La Costeña (airline), a Nicaraguan airline
• La Costeña (food company), a Mexican company

• Mark One (disambiguation)
• Mark one eyeball
• Mark O'Neill
• Mark O'Neill (disambiguation)
• Mark O'Neill Ireland
• Mark O'Neill (Rugby player)
• Mark O'Neill (TV personality)
• Marko Nesic
• Marko Nešić (born 1976)
• Marko Nikolic (footballer)
• Marko Nikolić
• Marko Nikolić (footballer, born June 1989)
• Markonikov alcohol
• Markonikov's rule
• Mark on the Door
• Marko-Olavi Myyry
• Markoolio
• Marko Oreskovic
• Marko Orlandic
• Marko Ostir
• Marko Oštir
• Marko Palavestric
• Marko Pavlovic
• Marko Pavlović
• Marko Penov