Marosszék (Hungarian pronunciation: [ˈmɒroʃseːk]) was one of the seats in the historical Székely Land. It was named after the Maros, a river with the biggest discharge in the seat. The composer Zoltán Kodály wrote the Dances of Marosszék (1927, for piano, later orchestrated) based on the folk music of this region.

The religious make-up of Marosszék in 1867 was the following:

• Calvinist: 48,034
• Roman Catholic: 15,697
• Greek Catholic: 12,641
• Unitarian: 7,116
• Greek Orthodox: 5,520
• Jewish: 944
• Lutheran: 285
• Foreigner: 771
• Total: 91,008

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  The fortified church of Marosvásárhely
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  Teleki Library, commonly known as the Teleki Téka, established in 1802
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  Building of the Royal Court of Appeal in Marosvásárhely
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  Castle of the Rhédey noble family in Mezősámsond
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  View of Marosvásárhely and surroundings

• Orbán, Balázs (1868). A Székelyföld leírása. Pest: Panda és Frohna Könyvnyomdája.