- Deutsche Mark - the name of the former currency in Germany, now replaced by the Euro.
- Markka/Mark - the name of the former currency in Finland, now replaced by the Euro.
- Mark (English money) - a former unit of account in Britain.
- Mark the Evangelist - is the name of one of the gospel writers of the life of Jesus Christ. It is generally agreed he was acting as scribe for Peter.
- Mark, Sweden - a municipality in Sweden.
- Mark (victim) - the victim of a con game.
- Mark (earldom) - medieval state in Westphalia, part of the Holy Roman Empire
- Mark (computing) - a delimiter at the beginning or end of a transmission sequence
- Mark frequency - in radio transmission; see frequency-shift keying
- In Lord of the Rings, the fictional country of Rohan is sometimes known as The Mark
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